Top 6 Webflow Site Performance Optimization Tricks

According to Google, if your website's PageSpeed score is significantly below 90, your conversion rates will suffer dramatically. The math is even more brutal for B2B SaaS businesses where every visitor counts.

Most teams get caught up chasing perfect layouts while the performance metrics quietly tank in the background. It’s a pattern across B2B SaaS sites we audit.

Speed directly impacts your search rankings, user experience, and bottom line revenue. Webflow gives you visual freedom, but the back-end often bloats fast. 

From uncompressed assets to poorly structured interactions, there could be multiple reasons why your Webflow website speed is suffering. 

In this article, we will share how we, at Beetle Beetle, fix these bottlenecks and how you can implement the same tactics without starting from scratch.

Before we disclose our trade secrets, allow us to quickly explain a few basics. 

Why Webflow?

Over 575,000 active websites run on Webflow today, with another 533,000 having used the platform historically.

The platform became the preferred choice for commercial websites because of its visual design capabilities and no-code approach.

Being a no-code website builder means teams can ship professional sites without writing HTML, CSS, or JavaScript from scratch. This democratizes web development for marketing teams and agencies alike. 

What initially drew us to Webflow was the CMS functionality that lets you create hundreds of landing pages instantly by importing Google Sheets. 

The Designer interface feels intuitive, automated backups eliminate technical headaches, and the cloneable showcase offers extensive free templates.

Webflow was also built with performance as a core feature, thanks to its hosting infrastructure and architecture:

• Clean code output: Webflow generates extremely optimized HTML and CSS without unnecessary bloat
• Minimal third-party dependencies: Unlike WordPress, there are no plugin conflicts or render-blocking scripts cluttering your site
• Enterprise-grade hosting: All sites run on Amazon CloudFront and Fastly CDN networks, eliminating server management concerns

It was found that a blank Webflow page consistently scores 100% on PageSpeed Insights. Even competing platforms with fresh installs rarely break 85% on similar tests.

All of this makes Webflow an obvious choice, but raw speed alone isn’t enough. What matters is how well your site performs once it’s filled with real content, animations, interactions, and tracking scripts.

Let’s get into how to keep things fast as your site grows.

Here’s How We Improve Webflow Website Speed and Performance

There’s no single reason your Webflow site feels sluggish. It’s usually a mix of heavy media, unnecessary scripts, overdesigned interactions, and forgotten page elements stacking up. Below are the exact issues we fix and how you can do the same.

1. Optimize Image Files

Bottleneck: We have observed that images typically account for 60-70% of the total page weight on Webflow sites. Most teams upload high-resolution photos directly from their camera or design tools without compression. This single mistake can add 3-4 seconds to your load time.

Webflow automatically generates responsive images, but the original file size still matters significantly. A 2MB hero image will slow down your site regardless of responsive breakpoints. The platform doesn't compress images aggressively enough by default.

Solution:

• Compress images to under 200KB before uploading to Webflow
• Use WebP format when possible for 25-35% smaller file sizes
• Implement lazy loading for images below the fold through Webflow's native settings
• Remove unnecessary metadata from image files using tools like TinyPNG
• Use SVGs for icons and flat graphics whenever possible
• If you must use PNG, only do so where transparency is needed

2. Optimized SVG Files

Bottleneck: SVG files often contain unnecessary code, comments, and metadata that bloat file sizes. Teams export SVGs directly from design tools without compression. Unoptimized SVGs can actually be larger than compressed PNG alternatives, defeating the purpose.

Multiple SVG sizes also create additional CSS combo classes in Webflow, adding more code to your stylesheets.

Solution:

• Run all SVGs through compression tools before uploading
• Standardize SVG dimensions (like 72x72) to reduce CSS combo classes
• For hero section icons, embed SVG code directly using Webflow's embed element
• Use currentColor in SVG code and create a color swatch for global icon color changes

3. Get Rid of Third-Party Scripts

Bottleneck: Third-party scripts, chatbots, and tracking pixels take a major toll on your performance scores. LCP and FID metrics increase dramatically with render-blocking scripts. The key issue is that all these scripts try to load immediately when someone visits your page.

This creates a traffic jam in your browser's loading process. Your actual page content gets delayed while the browser downloads and executes marketing scripts that users won't interact with for several seconds anyway.

Solution:

• Delay scripts using Google Tag Manager
• Load scripts only on relevant pages (e.g., conversion scripts only on the checkout page)
• Use defer or async attributes instead of loading scripts in the head
• Remove any script that’s not essential
• Check for no-script alternatives or API workarounds
• Load heavier scripts only on desktop if not mobile-relevant
• Evaluate each integration: do you need it, or was it added and forgotten?

4. Optimize and Declutter Custom Fonts

Bottleneck: Each custom font family and weight requires a separate HTTP request. Web fonts can block text rendering until they fully load, creating a flash of invisible text. Many sites load unnecessary font weights they never actually use.

Solution:

• Only load two font weights per family (regular and bold)
• Use font-display: swap to avoid blank text rendering
• Self-host fonts to reduce DNS lookups and improve control
• Avoid italic or light weights unless visibly required
• Audit fonts regularly. Remove unused ones from the project
• Don’t preload fonts unless absolutely necessary

5. Animations Are Overused or Poorly Built

Bottleneck: Webflow's interaction engine makes it easy to add scroll-triggered animations, but complex interactions can bog down mobile devices. 

Every scroll-based animation forces the browser to recalculate layouts continuously. This becomes especially problematic on pages with multiple animated elements running simultaneously.

These animations are much more expensive than transform and opacity changes. Overuse of parallax scrolling and complex hover effects can make your site feel sluggish on slower devices.

Solution:

• Limit scroll-based interactions to essential elements only
• Use transform and opacity properties instead of width/height animations
• Remove decorative animations that don't serve conversion purposes
• Test animations on mid-range mobile devices to ensure smooth performance
• Consider static alternatives for complex hover effects on mobile

6. Unused Elements Are Still Being Served

Bottleneck: Webflow generates CSS for every element you create, even if it's hidden or unused. Draft pages, deleted elements that still exist in the Designer, and unused combo classes all add unnecessary code to your stylesheet. This bloat accumulates over time as teams iterate on designs.

Hidden elements still load in the background, consuming bandwidth and processing power. Unused interactions and animations also generate JavaScript that runs on every page load, regardless of whether those elements are visible.

Solution:

• Periodically clean up unused combo classes in your style panel
• Delete draft pages and unused elements from your Designer
• Remove unused interactions from elements that no longer need them
• Use Webflow's cleanup tool to identify and remove orphaned styles
• Archive old project versions to prevent style bloat from carrying forward

Optimization is just one part of maintaining performance as you scale your website. New content, features, and integrations constantly impact your load times. The only way to ensure consistent performance is through continuous testing and monitoring.

Here's How We Test Our Webflow Builds for Speed

You don’t need fancy tools or weekly audits to keep your website in top shape. Just a few habits go a long way:

• Run a Lighthouse as well as PageSpeed Insights test after every major publish
• Monitor Largest Contentful Paint (LCP), First Input Delay (FID), and Total Blocking Time (TBT) specifically
• Check performance separately on desktop and mobile
• Use WebPageTest for deeper diagnostics when something feels off
• Audit your interactions panel often. Small animations pile up fast
• Clear out unused classes, assets, and components at least once a month

Fast sites convert better. But fast sites that stay fast? Those are the ones that scale smoothly.

Let performance testing become part of your process, not an afterthought.

A small caveat: You will forever struggle with performance issues if your website architecture is fundamentally flawed from day one. 

Building a business website for B2B SaaS is unlike any other project due to the sheer complexity of conversion funnels, lead tracking, and integration requirements.

Getting an expert involved from the start saves you a lot of patchwork down the line. The techniques we've covered here work best when applied to sites built with performance in mind from the ground up.

FYI: At Beetle Beetle, we build fast, scalable Webflow sites with performance baked in from the start.

Revamp Your B2B SaaS Website for Better Conversion With Beetle Beetle

Performance optimization can transform your conversion rates, but the results depend heavily on execution quality. Each technique we've covered requires careful implementation to avoid breaking existing functionality. 

The difference between a 40% speed improvement and a broken website often comes down to technical expertise and systematic testing.

Most agencies treat website speed as an afterthought rather than a core business requirement. This backward approach costs companies thousands in lost conversions every month.

At Beetle Beetle, we expertly design and develop high-converting B2B SaaS websites that prioritize performance from the ground up. Our systematic approach ensures your site loads fast while maintaining the visual appeal and functionality your prospects expect.

What makes us different from typical web agencies:

• Niche expertise: We exclusively serve B2B SaaS businesses and understand your unique conversion challenges
• In-depth market research: Every design decision is backed by competitor analysis and industry benchmarking
• Conversion-focused development: We build sites that turn visitors into qualified leads, not just pretty portfolios
• Webflow certified agency: Our team holds official Webflow certifications and stays current with platform updates
• Obsessed with your success: Your revenue growth directly drives our reputation and referral business

Don't let slow website performance cost you another qualified lead.

Hire us for website design before your competitor does