Having another issue with boot

So i configured every text and made a stable efi for my system. But when i let it boot itself, screen backlight gets on and off 2-3 times then i get the oc screen. When system boots up, it works slow as hell, even tho my graphic drivers setted on. If i press f12 and enter boot menu, select oc and boot, none of this happens, runs smoothly. I checked every bios settings, none of them works.

submitted by /u/shizoskittt
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