cg_coronas
The cg_coronas displays or not the corona effects around lights.
Usage:
/seta cg_coronas 1
then do:
/vid_restart
Values: “0” (on) or “1” (off)
Default: “1”
Note:
Setting cg_coronas off helps (increases) your FPS (Frames per Second), so you will be able to see the movement smother.