Forum horrible performance on mobile

Mobile version of forum has awful performance. When I read a forum thread and scroll only in one direction, everything is fine, but if I try to scroll in opposite direction, website freezes for a moment. This feels very unresponsive and is disturbing.

Phone: Poco x3 6gb ram, android 11 with miui 12.5.4
Browser: brave 1.33 (chromium based). Same behavior observed on google chrome browser.

I observe this poor performance from the very start of playing this game and browsing forum, it’s just today I’m so done with it I’ve decided to create a bug report.