Unity stutters every 10-20 seconds.

This is an issue I’ve been dealing with for a while now, and there’s tons of threads about it, and none of them have any good advice for solving it.

Basically in my scene (3d, first person type game), everything is running smooth, then all of the sudden (im running vsync, 144hz), it drops even 1 frame and goes down to 143hz, and stutters (looks like it skips a frame or something). Not game breaking, but very noticeable, and annoying. Please help.

This is with a custom rigidbody controller, but also happens with unity’s character controller. I’ve reset my nvidia settings to factory, enabled gsync, disabled gsync, disabled vsync, literally nothing works. I’m just starting to think this is the way unity is, which is fine, I’d just like someone to confirm it for me, so I can stop wasting time trying to fix it.

Again, this ONLY happens when the frame-rate fluctuates. I have an fps counter at the top, and when I enable Vsync and it’s at 144hz, super smooth, but the second it drops to 143hz, you can literally see the frame skip/hitch for a fraction of a second (too fast for recording software to pick up).

I also went as far as unparenting the first person camera, making it static in place, and walked the first person character around infront of it, and you can literally see the character skip in the direction it’s walking for a split second (when the frame rate fluctuates like I mentioned above), which makes me think that this is a unity problem.

(Please don’t tell me to use delta time or late update, I’ve already tried that, and my code/project has been looked over by 10+ pros in the unity discord, they couldn’t find anything wrong with it.)

Yes, I’ve built it, yes I’ve ran the exe in the build folder. Nothing seems to get rid of the hitch.

I would truly, greatly appreciate if someone who works for unity could reply to this, and just tell me if this is normal or not. I’ve wasted so much time trying to “fix” this and I’m stressed to the core. All I’m asking for is a 30 second reply from someone who knows what they’re doing.

Even if I make a new scene and just make a barebones character controller player, it still happens. Completely baffles me that nobody else posts about this. It doesn’t involve the mouse either, if I just move from side to side while looking at a detailed object (like a car), you can visibly see it stutter if it goes down a single frame.

Nobody?
Can someone at least download my build and test it, so I can make sure my computer isn’t failing? I would really appreciate it.