Some context:
I'm using a Raspberry Pi 4 with the 64bit Bullseye as a steamlink client. Before starting steamlink I switch to TTY2 to avoid the X11 incompatibility warning.
My PC and the raspi are connected both to my router via ethernet.

Issue:
When streaming to the raspi, I observe periodic frame losses (round about every 1 second). In the detailed performance overlay the spikes are well observable. https://imgur.com/a/uGPuU8m

Has anyone experienced this issue and has an idea how to solve this or where to research.

Thx :)