Don't have the answer, but just so you don't feel alone, it is a problem for a lot of users, and for some reason, mainly while on the PCA forum.
On some of the pages, my cursor behaves itself, while on others it is completely uncontrollable. J. :o(
Galaxy Note 8 vs iPhone X
Awful clip art from 1994 is being tweeted every hour by a bot
iPhone X vs Samsung Galaxy Note 8
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