CPU spike when opening video and FB messenger

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When I open a local video, or answer a Facebook messenger call, my mouse freezes and the CPU spikes to 100% for a second or two. This is a new occurrence. I completely reset my PC a few days ago and haven’t downloaded anything suspicious, and have updated every driver and installed all recommended upgrades.
See this video for a demonstration: https://screencast-o-matic.com/watch/cY61Q4KU2o it shows my task manager activity as well as the incident itself. I’m physically moving my mouse the entire time in the video so you can see exactly when it freezes and when it goes back to normal.
There are no errors (that i can find) being generated in the ‘event viewer’. But I don’t know much about the event viewer, so you can steer me in the right direction if need be.
Here’s a link to my CPU-Z Report: https://www.dropbox.com/s/7uqc0jqfeiitcom/DESKTOP-2RI40NH.html?dl=0 Edit: the report won’t display correctly on the dropbox website, you’ll need to download it then open…

CPU spike when opening video and FB messenger

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