Firefox getting slow/unresponsive on heavy pages (works fine in Chrome)

Hi everyone, I run a [https://cost4estimating.com/ construction estimating] construction estimating website where we share project-based cost estimates and detailed breakdown for contractors, architects I’ve noticed a weird issue in Firefox lately. Some of the heavier pages (especially ones with large tables, detailed breakdowns, and embedded content) start getting really slow or sometimes even become unresponsive in Firefox. The same pages load completely fine and smooth in Chrome, so I’m trying to understand what Firefox might be struggling with specifically. I already tried the basic stuff like clearing cache, testing in private mode, and disabling extensions, but the issue still keeps coming back. It seems more noticeable on pages with a lot of structured data and embedded elements, so I’m wondering if it could be a rendering, memory, or layout issue on Firefox’s side. Has anyone dealt with similar performance issues on Firefox with data-heavy or content-heavy web pages? What should I look into next — layout structure, CSS rendering, JS execution, or something Firefox-specific I might be missing? Any guidance or debugging tips would be really appreciated.