Auto will slow down scanning, as it has to try every filter setting every time it changes frequencies, which slows scanning down to 1/2 normal speed or less. Try Normal, then Invert, instead of the Auto settings.
Also use a SDR to sweep the region around the problem freq. There's a pulsating aspect to the static that sounds like interference, almost like a sped-up version of the pulsating static you see with the cold solder joint problem.
It would be more helpful if you posted a video of the actual transmission being received, instead of the Replay.