It may sound basic, but having drivers updated, your gpu app properly configured, and vacuum cleaning/dusting off your cpu helps a lot as well.
Other than that, not sure what could cause a sudden downgrade in performance.

There are ''good'' and 'bad' patches in your gpu software as well, some versions are, for whatever reason, slightly more compatible with your setup than others.

yeah unfortunately going offline entirely has been the biggest thing that has made ER run more smoothly for me. I'm still not entirely sure what caused it to start running as poorly as it did recently tho as it has only just recently begun running as poorly as it does now and before then i would generally have a relatively consistent 60 fps.

If it helps, there's people out there with 4090's and i11's that still have heavy frame drops in ER.

After months and months of researching for heavy optimization (without losing quality), I've been able to run it at semi-consistent 60 fps on...70? 80% of the game?
There's still some mayor areas that struggle like crazy.

EAC is indeed a pain in the ass. Tested without it, flawless game.
The damned thing also doesn't prevent a good portion of the more annoying cheats, and also usually creates artificial latency (around 100+ ms as well, not something small).

EAC legit the biggest scam of this gaming generation

Me cae bien. Desde que lo spectié y vi que seguía a los oponentes por las paredes, me cae mejor

for those of you who like to eat little caesar or hungry howls that would be a good one for dinner so as you eat pizza and wings for dinner and then otherwise little caesars about the batman calzoney pizza like a new batman pizza thats a good one about that and the next one in hungry howls i eat pizza and wings i eat it everything pizza with the everything on there and thats good during the soda i drink the sierra mist and thats a the good one that was a good one yeah another one thing interesting about thems is you only wanted to eat pizza and wings for dinner and now he always throwing the pizza and then pizza on the ground and then not even good cause eulgh why would they even do that its sort of that you want to eat pizza and wings for dinner that would be a good one so you can go ahead and have some pizza and wings from little caesars and that would be a good one for that yeah thumbs up if you like pizza and wings for dinner

+rep killer dcd after she looped him around a box