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[kde] Plasma 5: Akonadi and slow start

Hello. For a long time (Plasma 5, Fedora and ArchLinux) I have noticed that if 
use akonadi, the startup time is markedly increased (black screen 1-1.5 minute 
after login). I read a lot about this problem, but working solution I haven't 
found. Is there a way to use akonadi without effect a slow start?
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