Nachbar
1. Did you try to change these settings?
2. What videocard do you have?
3. What decoder is selected in the LAV Filters video decoder (cuvid/quicksync/DXVA2 copy-back)?
I was watching at it long time and can say Reclock like fast framerate value stabilization at playback start. So SVP must work fast at the start. It depends on decoder and splitter. And on one SVP hidden setting:
;Frame size and framerate detection mode, 1 - by frame grabbing or 2 - from OSD
VarChkDimAndFps=2
Try to change from one to another value. Then restart SVP-manager.