Preview window - Switching to other applications
Starting with the latest update (39.0.12) from this week, navigating to and from the Preview Window is very laggy.
The preview window doesn't refresh in real time, as it used to, and when you try to swith (alt-tab) to other windows it lags for some seconds before doing something.
Switching to other apps (alt-tab) from XD also results in the computer getting laggy for a few seconds.
This does not happen with any other Adobe apps, or any other apps in general.
I'm using Win10 with all the latest updates.