Page builders often assemble complex layouts using multiple CSS and JavaScript assets that interact with
each other. To keep them stable while optimizing performance, begin with conservative minification and
deferral settings. Enable HTML and CSS minify first, then add JS minify, and defer scripts only after
verifying that dynamic components—tabs, accordions, sliders—behave correctly. Many builders rely on
jQuery being available early, so leaving “Skip defer jQuery” enabled helps maintain compatibility with
legacy widgets and add‑ons.
If you notice editor preview or front‑end widgets breaking, add the builder’s core scripts and styles to
the exclusion list. Common candidates include the main frontend bundle, animation libraries, and inline
dependency managers. Avoid lazy loading images that are part of above‑the‑fold hero sections assembled
by the builder; provide explicit dimensions or placeholders to prevent layout shifts. For global
templates and popups, test on multiple pages to ensure that deferred scripts still initialize correctly
after navigation.
When updating builder versions or switching themes, purge caches and re‑evaluate exclusions. Builders
evolve rapidly, and what worked last quarter might need slight adjustments after a major update. With
measured changes and targeted exclusions, you can keep builder‑powered sites fast and reliable.