How can I keep maximum video quality?, don't care about latency.

My wish is to keep the highest quality of the video from the client.
I tried to record video with codec is h264 and ffmppeg to .mp4 file. At localhost with default setting, it works pretty well . But on my virtual server, my video is broken pixel point, and verry noise.
Can someone give me some suggestions to increase video quality? (the increase in latency is acceptable)
My server: Centos 8, AMD High Performance 1 vCPU, 2048 MB RAM, 50 GB NVMe, 3.00 TB Transfer

Thank for your help!


You need to find a better host.

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