Any Opencore Legacy Patcher users here? – Computer Setup and System Configuration Forum

I finally took the plunge and installed Sonoma on my Macbook pro mid-2012 that was stuck on Catalina, thanks to Opencore Legacy patcher (I did a fresh install from a formatted SSD).
I wanted to be able to install the last version of Ableton Live 12 on it and share some sessions with my M1 pro…

So far, it seems everything runs fine, but I noticed the mac is hotter than before, and the fans are all the time on.
It may be because of the Spotlight indexing, or it may just be that Sonoma is too GPU intensive for this poor old fellow (I’m pretty sure it’s a GPu issue, because it’s hot on the top left corner).

I’m afraid it’s the second option and Sonoma is not a good idea for this old laptop, because at the beginning the macbook was very hot and the fans were running quick, but now it seems indexing is finished, and the laptop is still hotter than before and the fans never stop (even if they are quite low), even if nothing happens.

I wonder if it will stand some hardcore Ableton live abuse like before, being already exhausted when idle…

Anyone in the same situation ?
Anyone did find a fix ?