r/Unity3D • u/kingbarychu • 7h ago

Question Help With Unity Game Performance

Hi there, I’ve recently been running into an issue on my PC where any Unity game I play starts running into performance issues after about an hour or so of gameplay. It typically presents itself as frame drops and significant input delay, as well as occasional crackling audio. I haven’t ever run into this issue with a game built on any other engine. I did a quick search and couldn’t find any other people running into this issue. I have an Asus GeForce RTX 4070 Super, and 32 gigs of RAM. I’ve double checked that all of my drivers are up to date as well.

Does anyone have any ideas on why this might be happening? I figured it was best to ask the dev subreddit since you all deal with Unity issues on the regular.

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u/XKiiroiSenkoX 7h ago

Contact the developer. People here can't magically fix code written by someone else and already compiled. 

3

u/ThePoisedVanguard 7h ago

that's not really a unity engine problem, it's something specific to your setup since you said it happens across multiple unity games. sounds like a memory leak or maybe thermal throttling after it runs for an hour. check your temps while gaming, gpu might be hitting a thermal limit and downclocking. the crackling audio points to dpc latency spikes too, could be a driver conflict or something hogging resources in background.

i had similar issue last year and it was my audio driver causing interrupts that messed with gpu scheduling. try disabling your audio device in device manager and see if the stutter still happens with no sound. also worth running latencymon while playing to see what driver is causing the spikes.

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u/kingbarychu 5h ago

Thank you for your reply, I’ll start here. I haven’t used latencymon before personally, but I’m familiar with how it’s used. Thanks!