What exactly you mean by straight delayed gameplay? Is it hardware input lag? FPS lag? Network Lag?
-Try to install the drivers properly, or in any case of hardware input lag, reinstall the drivers..
-For FPS lags, try to close any program running behind. Also, you can follow these two topics, they are very useful and detailed.
Credits to Thunder and Harb. Show content
https://cit.gg/index.php?topic=344484.0
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https://cit.gg/index.php?topic=361683.0
What do you mean by lag?If it is FPS Lag or Ping Lag ,
Here it is a guide and all info you need to fix it is here.
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https://cit.gg/index.php?topic=158399.0