- MulticamPanel: playback angle refresh runs one cycle per 3 ticks
instead of re-requesting every source every tick — each angle decode
is a keyframe-scanning FFmpeg seek that stole worker capacity from
the main viewer
- PreRender frames default 120 -> 12: a window larger than what the
pool can render in real time queues far ahead of the playhead, so
the painted frame lags seconds behind (playback frozen); a smaller
window keeps the backlog bounded
- render_graph_frame: OAK_PERF clip-level timing
Mike-Solar
be42620e22