Whole computer goes dial up internet speed on with YT on MBP Retina 11,2

I started with OCLP with Ventura which seemed to be fine for videos. But with Sonoma and Sequoia as soon as I try to play a YouTube video on Safari or Chrome, my whole computer OS becomes mired in molasses on a cold day in February, can't even switch applications. Video with QuickTime or video streamed on many web pages seem fine. However going to the LaunchPad things get pretty slow but not as slow as with YouTube

I tried to adjust the video settings in the Open Core patch app, but the check boxes are greyed out and yes I did choose the 11,2 model in the Target Model chooser.

I've tried going through the documentation but unfortunately my ADHD starts bugging out a couple of paragraphs in and I'm not able to find the right steps to take. Can someone please do a point form step by step (doesn't need a lot of explanation, just the steps) of how to do this and see if that works. Or is there a patcher I can download to update the video etc - I saw something about that on an older OCLP video (which I had to watch on another machine). Many thanks for understanding and help.