Since mid-December, I've been experiencing abnormal lag on the [https://namu.wiki] website when using the official build of Firefox. For example, there's stuttering during page loading, and when I hover the mouse cursor over a hyperlink, there's about a 3-second delay before it responds. However, I found that the site works correctly when using the Nightly build of Firefox. I suspect that this issue is not related to any extensions. According to the page [https://namu.wiki/w/Firefox#s-4.1.1] similar issues have occurred in the past with the official Firefox builds. Please help.