When I search for an app, the searching never stops and all my 8 cores are at 60-80% load.
This should be solved as of 2029e2b98d8a4e6a124c0240e8b2cca79a0c05b7 which will appear in 5.15. It would be useful if you can test master FWIW, as this is a rather big change.
This also happens with the master branch. But I found something: If I minimize Discover's windows, the searching stops and the CPU usage is down.
Seems to work fine now.