Webrtc camera stream slow opening, especially running in fully kiosk

Hi,

Dahua Rtsp cameras setup via webrtc → go2rtc → generic camera. In my dashboard and even more so when reactivating fully kiosk with motion, the camera takes annoyingly long to load. What are tips to reduce? Maybe with fully kiosk preloading? But preferably deeper in home assistant.

Running latest versions of everything by the way. Dahua nvr, wired to router and running home assistant on raspberry pi 4.

Do you need webrtc?
A version is included in go2rtc.