Issue with lag/stuttering while rendering 4K gaming clips – Is it my gpu or the software?

Hey everyone,

I’ve been running into a frustrating issue lately and I’m hoping someone with a similar build might have some insight. I recently upgraded to an RTX 3070, but every time I try to edit and export my 4K gameplay clips, my system starts stuttering like crazy.

I’ve noticed that while the playback is smooth initially, the moment I add overlays or try to use a version to quickly trim my mobile captures for TikTok, my CPU usage spikes to 100% and the preview window freezes.

A few specific questions/issues I’m facing:

Does anyone else experience memory leaks when using mobile-to-PC editing workflows?

Could this be a codec issue rather than a hardware limitation?

Are there specific BIOS settings or NVIDIA Control Panel tweaks that help with hardware acceleration in lightweight editors?

I really want to get these clips out without my PC sounding like a jet engine. If anyone has found a fix for the lag when you use free capcut or similar tools alongside high-end gaming software, please let me know!

Thanks in advance!

Are you running it off of your phone? If so that could be a problem. And something that yoy could do if windows says “this app* is not responding. Would you like to close the program?” click the button that says “wait for program to respond” don’t click the button to close the program. And what cpu do you have? That could be the bottleneck. And what drive are you getting the video files off of? Is it a ssd? A hdd? Is it a sata drive? And what refresh rate is the video recorded at? 120fps? 60fps? 90fps? 200fps? If you answer those questions than we might be able to help.

*=this app referring to the program that your using.

I feel this is a product of data transfer, but I am not an expert on the subject. Is there any way you can upload these videos to social media platforms without transferring them to your phone?

What kind of CPU do you have? Friend on how your clips are being rendered, it might be a bottleneck somewhere. That or you have a pesky system file hogging resources in the background.

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