HubSpot Perf Boost by jiyoung0921

A personal-use browser extension that reduces perceived UI slowness on HubSpot's dashboard (app.hubspot.com).

What it does:

Forces all CSS transitions and animations to be near-instant, removing the "fade/slide in slowly" feel of a heavy single-page app (enabled by default)
Optional network request blocking for specific third-party domains you identify yourself via DevTools — the block list ships empty; you add domains only after confirming they're safe to block

Two toggles in the popup control both features independently. This extension collects and transmits no data of any kind, and only touches pages under hubspot.com.

Limitations: it cannot fix HubSpot's own server response times, or the inherent JS-engine gap between Gecko and Chromium. It only removes client-side rendering jank and blocks requests you've explicitly chosen to block.