Razer Ornata v2 | Input lag

Hello everyone,

I'm experiencing huge input lag with my Razer Ornata in-game and when my PC is under load in general, and I'm sure it comes from the keyboard since my mouse is working fine.
I tried installing synaps, reinstalling drivers but it didn't fix the problem, the keyboard is connected to a 3.0 USB port.

Problem :
Lag issue under load (Unity, Titanfall 2, Overwatch, Control..)

PC Spec :
Soft : Window 11
Hard : Nvidia 3060TI, Intel i7 7K, 16Go RAM

I found a similar threat here, but it didn't help me.

Thanks a lot in advance, have a good day !