Ok everyone, pretty embarrassing one for me but I'd much prefer that to the module itself being a problem. BJ55 had the right idea. In my defense I haven't played much since that update came out but... I was accidentally using the non-multicore version of DCS. I forgot about needing to use two separate executables... I didn't think it was an issue on my side since other aircraft were doing just fine.
I still experience some FPS drop when looking around or when low to the ground but it's no longer that bad to make the game unplayable for the most part, and lowering settings helps.
Thank you all for trying though !
