Please provide us with more and accurate detail.
Can you share a sample video and screenshots of your settings.
What resolution is your eq client running at?
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https://www.youtube.com/results?search_query=obs+studio
There are hundreds if not thousands of tutorials for OBS Studio'
https://obsproject.com/help
OBS also has an active site and forum community. This includes an FAQ, Tutorials, Discord and more.
https://www.reddit.com/r/obs/
The last option I'd recommend for getting faster answers is asking in a place designated for the software. Such as this reddit.