Hey! Oh no, I'm sorry to hear you've still got this issue. It's weird that nobody else has reported any lag issues, or at least not at the severity you've had to endure. I had another person (thesquirrel123) who actually said they were surprised the game ran on their old machine! I wonder if doing a hard reset might help it if you're on browser? I did some pretty hefty optimisation passes on the game specifically addressing your intel about where you were experiencing it. Even to the point of like full-on defensive programming for managing rendering, cache, etc.
I just want to say this is definitely not annoying at all - the only thing that's frustrating is you not being able to enjoy the world of the game! If you could please provide any further info specifically about your machine and what you're playing on (which platform etc), that would be helpful. If you can locate a save file then feel free to drop me a link to it, if that's not too much trouble. But I totally understand if you're just over it at this point. Honestly, though, I will pull out all the stops to figure this out. I really want to ensure that anyone can play it, and especially those folks running 5090s!