Galaxy S7 display settings for gaming
I swear this was the first thing I tried but my 2nd attempt seemed to fix it.  Simply change the display option.  Save it.  Then change it back.

Settings &gt; Display and wallpaper &gt; Screen mode

A few things I also did while messing with it that might have had an impact:


turned Game Launcher app off an on
installed Google's Play Games app which seemed to force some other updates
rebooted the phone