I've been struggling to find the cause of some really annoying major slowdown of the youtube website. It has huge input lag and everything takes ages to load with big CPU usage spikes. The front page has always been problematic since I have hundreds of subscriptions so the left side menu has a lot to load (something I find to be entirely BS in terms of UI design), but now I can barely scroll the list and video feed is also slow to scroll and load. I've tested youtube vs hooktube with the same videos at the same 720p quality. If it hovers at around 10-12% while playing in hooktube, the same video runs at 20-25% while playing on youtube. And if I interact with the UI elements of youtube (video controls, side panel scrolling, comments loading) I can see spikes of 40-60% and the entire website acts like it freezes. Clicking a button or another video can take seconds to register. I've noticed that when I log out the input lag is less pronounced while watching a video, but it still very problematic. Both Chrome, Firefox and Edge act the same (although Edge is a bit better but mostly because it's more clean since I barely use it). Is anyone else experiencing problems like this?