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Old 06-28-2019, 08:06 PM   #10
Shaneb
Junior Member
 
Join Date: Jun 2019
Posts: 1
Default In addition to the security settings solution, I had to change my refresh rate.

I don't know if this is monitor specific, but with Mojave I had my two external monitors set to 60 Hertz and all was good but with the Catalina install, the refresh on the external monitor was lagging severely. Changing the refresh rate to 59.88 Hertz (NTSC) fixed this for me.
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