Clicking LMB makes my polling rate to drop down to 125hz

[dermodemon]

When i am clicking my LMB polling rate drops from 1000hz to 125hz. Every single time. When i am holding LMB (for example spraying with a gun in cs2) my mouse is working at 125hz. How and why this is happening and how can i fix it?
I confirmed this bug with mousetester v1.4 and mousetester v1.7.2.
Does anybody else have this bug?
This is without holding LMB

1000.png (43.53 KiB) Viewed 206 times

And this is while holding LMB

125.png (37.24 KiB) Viewed 206 times

[Slender]

what mice? i dont see any frequency drops on this grahs. Use 1.5.3 modded instead.

[dermodemon]

what mice? i dont see any frequency drops on this grahs. Use 1.5.3 modded instead.

all mice i have(mchose g3 ultra, xd7v2, zaopin z2, darmoshark m3 ultra, mchose a7 ultra)
you can clearly see it on the graphs. it degrates from 1 ms to 8 ms

[Slender]

what mice? i dont see any frequency drops on this grahs. Use 1.5.3 modded instead.

all mice i have(mchose g3 ultra, xd7v2, zaopin z2, darmoshark m3 ultra, mchose a7 ultra)
you can clearly see it on the graphs. it degrates from 1 ms to 8 ms

I tested this on all mine three mice. I pressed the left mouse button and F2, and there was no difference. Do you feel this drop in performance in the game?