Bluetooth not working After Some minutes/hours - Inkbird kills Batterys

Hello,

i have bought an Inkbird Pool Thermometer (IBS-P01B) and installed an internal Bluetooth/Wifi Card to my HP Mini Desktop Running Home Assistant. Everything seems to run fine, the Inkbird Thermometer was detected properly as Inkbird Is natively Supported by Home Assistant. After a couple of hours (sometimes Minutes) the values from the Inkbird Integration become unavailable - When Restarting Home Assistant everything is working Fine again and HA gets the values from the thermometer but even again only for a couple of hours/minutes. I figured out that i don‘t Need to restart Home Assistant to get Bluetooth Working - it still works when i switch to passive Scanning within the Bluetooth configuration. Then After a couple of Time i Need to Switch Back to active Scanning and so on.
By the way: This Is no issue related to the Inkbird thermometer - i have another Bluetooth device (Xiaomi Mi Plant Sensor) which Is also unavailable when the issue appears.
Whats the Problem Here?

Another thing which could be related to This (Maybee Caused By Active Scanning) Is that the Battery of my Inkbird Thermomter lasts for only Some days. This Can Not be normal - i assume in Active Scanning Mode (maybee also in passive) HA is Scanning to Often and the Thermostat is Sending all the Time its Data which is killing the battery. Is there Any Option to Setup How often HA is Scanning for New devices / device Updates ??
This issue is only related to The Inkbird Thermometer - the Plant Sensor has still 100% battery after 1 week while the Inkbird has its third pair of batterys installed only After one Week (2xAA)

Any Ideas