Issue with a b650 taïchi+7800x3d configuration

Edit :
Seems to be an usb issue.
resolu en installant les 2 usb additionnels directement branché sur la carte mère

Hello everyone,

I need your help.
Here is my problem:
I just updated my config which is as follows:
7800x3d
Asrock taïchi b650e
2x16gb gskill r5 neo 6000 hz latency 30
Nvme lexar 1tb
RTX 4070
Corsair RM1000e power supply
G9 Odyssey

I only play RF2

Here is my problem:
I do simracing (prima asetek base)
I get 70-80 fps in ultra but it's not at all smooth. Same if I lower the details and I reach more than 100 fps
I have a sort of crackling noise in the headset (like a knock or tick) which seems to synchronize with the slowdowns and jerks in the steering wheel.... I have this sound problem both via a non-USB wired headset and via a usb headset.

I tried deleting everything on the usb and same problem.

I drove with the keyboard and same fluidity and sound problem

I installed Battlefield and I also have poor fluidity although it is less noticeable

Anyone have a lead?
Motherboard ? I don't have an error code? USB problem?
CPU or GPU configuration problem?

Thank you in advance for your help and leads