Updates advisory window jerky

For the last couple of weeks (I’m guessing on the time span), when I’ve gotten an auto-update on the defs, that blue advisory popup window comes up very jerkily, when it used to be quite smooth.

Any wild chance this is somehow related to one or more of the most recent Win updates, which dealt primarily with graphics exploits? Or can someone give me any other clues what to look for? Video/graphics work just fine in all other contexts, both on- and off-line.

Thanks and best.

Seeing (excuse the pun) nothing like that here. Can’t think of anything that would produce this sort of intermittent fault.