I have very weird problem. When I want to power on my macbook pro after I press the button I need to wait 10-15s to see Apple Logo icon. It is so frustrating every time I need to restart my mac I need to wait 10-15s on black screen and later everything is working perfect. I have read questions on official apple website and they suggest that in this kind of problem I need to reset PRAM, SMC and select bootable disk to MacOS. After that I am still getting this problem.
I have done a clean instalation too and I am still getting this problem. Thanks for any help
Macbook PRO 2018 15,1 and I am running on latest Catalina