request: don't hardcode framerate

[ThaUnknown]

Hardcoding framerate for this looks very choppy, especially sub 60 fps as the video frametimes desync heavily from the fps check, I recommend requestVideoFrameCallback which would instead do this the frame before a frame is painted, or the moment a frame is processed, this allows for reduced bandwidth when no video updates are actually being sent, and more accurate video playback. It's also pollyfillable