Low framerate in games after secondary monitor popped and disconnected

Mrnix

Distinguished
Mar 17, 2013
88
0
18,640
Not sure where exactly problem lies but I was playing LoL when suddenly one of my monitors just 'popped' out of nowhere and became undetectable by windows. I restarted and identified the monitor again but when I log back into LoL games the framerate is barely reaching 20 when it usually sits around 200. Everytime I restart the same thing happens. Windows 10

Thanks very much in advance