Created attachment 158840 [details]
This video shows exactly how slow Elisa got

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***
Since this new version (23.04.0), Elisa got way slower on startup (slow to render anything and slow to present the playlist).

STEPS TO REPRODUCE
1. Launch Elisa
2. 
3. 

OBSERVED RESULT
Slow startup

EXPECTED RESULT
Normal startup as it was in previous versions

SOFTWARE/OS VERSIONS
Operating System: Solus 4.3
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9
Kernel Version: 6.2.14-232.current (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-3570K CPU @ 3.40GHz
Memory: 7.5 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1050/PCIe/SSE2

ADDITIONAL INFORMATION
The playlist contains 900 opus files