scanning speed

[iddq]

Hello, why is it too slow?

[2020-09-05 15:02:26][ INFO][ sdr] start recording frequency: 438,900,000 Hz, power: -7.87 dB #########_______________________________
Reattached kernel driver
[2020-09-05 15:02:29][ INFO][ sdr] stop recording frequency: 438,900,000 Hz

2-3 secs delay after stop.

[2020-09-05 15:02:31][ INFO][ sdr] recording time: 0.00 seconds
[2020-09-05 15:02:31][WARNING][ sdr] recording time too short, removing

2 secs delay between stop and start recording.

What is this RTL re-initialization again and again?

Detached kernel driver
Found Rafael Micro R820T tuner
[R82XX] PLL not locked!
Exact sample rate is: 1400000.018544 Hz
[2020-09-05 15:02:33][ INFO][ sdr] start recording frequency: 440,300,000 Hz, power: -7.84 dB #########_______________________________