Laptop constantly refreshing?

I can use my computer for a little while but after that whatever I have open will start refreshing over and over. I’ve restored it and run AVG, and both of those things stopped the problem, but only for a short time. I’ve noticed when I open task manager when this happens, that whatever tab I’m currently using the cpu number/percent column goes up and down rapidly. I’ve tried everything I can think of, which isn’t a lot, and would very much appreciate any suggestions. I have no idea if the information below is relevant but I saw other people add it so there it is.

I didn’t find the right solution from the Internet.
References:https://www.cnet.com/forums/discussions/laptop-constantly-refreshing/
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