Using Flicker Strike will visually desync your character

Using Flicker Strike (or Divergent Flicker Strike in my case) will visually desync you shortly after attacking. This means that your character will suddenly stand still but you can see enemies dying around you. You will only appear where you actually are/resync once you stopped attacking. If you keep holding for example your mouse button to attack with Flicker Strike even when there are no more enemies nearby you will stay desynced infinitely until you let go again.

Try out the Lockstep mode:

Access the Options from the Main Menu screen. On the UI tab, set Networking Mode to Lockstep and play around for a bit and see if anything improves for you.

I am on Lockstep, Predictive makes the desync go away but monsters sometimes won't lose HP until the server caught up. It is better than nothing tho!