I don't think the issue is your AV software. This sounds more like a Graphic issue and may be related to your graphics card and software .
The first step in troubleshooting is ensure that all your software is up to date. This means, Windows 10, Graphics card drivers.. etc... Your issue can also be HEAT issues, over heating.. ensure your cooling fans are working properly.. You can also download some free system stress software.. this could help isolate the problem. Memory is also a probability.
I would also recommend running Malwarebytes to ensure you don't have some pesty malware infection.. You don't need to make any exceptions for your Norton AV product ..