Shift+Alt causing lag and sometimes DC

Game mode: [Online]
Problem: [Crash | Bug | Performance |
Region: Amercia

I run the game in windowed fullscreen.While running discord i use the left ALT key as my push to talk. In game the left Shift is my Sprint key. Seems to happen more often when i have a captured thrall. If i hit both at the same time my screen will freeze and after a few seconds it will unfreeze or simply disconnect from the server.

Steps on how to reproduce issue:
1.Hold down the Left Shift Key
2.Hit the left ALT key
3.It doesn’t do it ever time, but for me its probably about 50%