Driver Problems after Reboot

Hey!

I Updated my Mid 2014 MacbookPro (2,5 GHz Quad-Core Intel Core i7, NVIDIA GeForce GT 750M 2 GB, Intel Iris Pro 1536 MB, 16 GB 1600 MHz DDR3) a month ago from Big Sur to Sonoma (14.5) via the Legacy Patcher.

After Root Patching, everything was running quite well. System performed okay, the Macbook didn't heat up too bad. Last night I shut down the Macbook and restarted this Morning. Everything takes forevery now, suddenly it feels like the mac is super slow. I have no idea what happened. Since a few days, the system suggests to update to Sonoma 14.6, automatic downloads are turned off. Could it be the mismatch error, Mr. Macintosh is talking about in this video?

I read that it could be the GPU drivers. Is there a way to test if the drivers are working properly? Is there a point in Rootpatching the drivers again?

I'm new to Legacy Patcher, sorry for the stupid question, if there's an obvious answer. As you can tell, I don't have an idea how to solve this issue...

All the best