Hey Andreas,
Thanks for the help, I was indeed using cat 6 cable with gigabit, but with the wifi on with anydesk it created a weird peak like this.
I bought a cheap Ugreen ethernet pcie card, plug my 2 computers together with VEP, and with the internal (motherboard) ethernet network I'm pluging the internet right from the router, turned the wifi off, so anydesk is ultra fast and now it's all good!
the same session that was showing 53 to 90% using ... is now at 3%
I hope this help someone, Thanks
Ben