This is most likely the most easy and best way to reduce lagg. Follow this 6 Steps to Easily remove/reduce the lagg while playing TOP.
1. Open Task Manager by Pressing Ctrl+Alt+Del or Ctrl+SHIFT+Esc.

2. Press Process (Second Buttom).

3. Rightclick "Game.exe".


4. Click Set Priority.

5. Click Higher than normal, or High.


6. Close Task Manager.

Now your CPU will work on Game.exe more than other programs, wich may lagg other programs but not TOP.
(Yes i know my OS is in Swedish, but you should still be able to understand it)