The main cause of Combat Lag is due to Graphics Card. In today's tutorial I will show you how to reduce that lag or completely remove it.
Warning - This may not work for everyone.
First off go to Control Panel on your PC.
Then go Hardware and Sound.
Then find your Graphics Card Program. - Mine is NVIDIA Control Panel.
Go to 3D Settings and Choose Adjust Image Settings.
Now you should see a Line with it saying Performance on one side and Quality on the other side.
Move the Bar all the way over to the Performance side.
Im just gonna post this picture of mine to help a little
This worked wonders for me and now I never lag when close to an enemy
If this helped you please push Thanks!