How to reduce lag spikes?

Hi, after changing the dxlevel from 81 to 95, I noticed a lot of lag spikes whenever using weapons, such as snipers from MK9 weapons.
Is there a way to reduce the lag without going back to dxlevel 81?

try -dxlevel 90, think it should have a small effect dunno, use less addons, lower your settings etc.

Or Windows Visual Effects can cause this.
Disable Windows Visual Effects.

Link:
How to disable Visuak Effects

If still not helping try to add code below as quick lunch option:

Then try to reduce your video settings in game.
I suggest:

**Try to play with this settings to get the best rending and gain a little FPS