I have the same issue, did you find a way to resolve this ??

EVGATech_ChrisB
This is the first time I am hearing this. 
 
Do you happen to have another computer that you could try this mouse on to see if the same behavior continues?
 
Please email us at Support@EVGA.com so we can help you to find a resolution.

Well, this post is from a year ago.  What I found out is this specific mouse did not like being plugged into my monitor or keyboard's passthrough USB ports.  The original mouse before it did not have that issue, I have always used my passthrough USB ports.  Seeing as you guys force people to pay for RMA shipping even though there is an issue with your product, I opted to just buy a new X20 on Amazon since it was on sale for like $18 and I would get it the same day; versus paying $10 to ship something back to you and get it back in 2 weeks.  The new mouse, worked just fine, confirming the issue is with the mouse itself.  However, few months later with the new mouse, the mouse wheel broke.  Again, not paying to ship my RMA.  So bought another X20 on Amazon for less than $20.. 3 months later, the mouse wheel broke again..  
  
Bottom line is with support and product quality going down hill I just gave up and bought from another brand.  Real Shame because I loved the ergonomics of the X20.  I wish EVGA was still what it was a year or two ago.

woodzstack
I have three of these mice, they were like more than 50% off a few years ago and on one PC they work without fail, but since then, on every other PC and lpatops especially they just lags and stutter and plain ass suck. No one else has this issue ?

always best to plug mouse into the MB directly

make sure the power plan you are using does not let the USB ports go to sleep.
--->>> Control Panel --->> All Control Panel Items --->>Power Options --->>Edit Plan Settings
 
 
the mouse also has a user set sleep timer in the EVGA Software