Strange laptop behavior

[THORs_Hand]

Hello!

I bought in march an ASUS GL503VD laptop (i7 7th gen 7700HQ 4 core@ 2.8GHz; 8GB DDR4 memory, 1TB Segate SSHD; 128GB Samsung NVMexpress SSD (not sure the exact model, it's not some kind of EVO and desktop nVidia GTX1050 4GB GPU)

It runs like a dream in all games that i throw at it, but there are some strange things going on with it, back in may i discoverd that my SSHD had a couple of bad sectors, still was acceptable but i decided to buy an SSD to make the OS run faster (the laptop didn't came with one) so i got an ADATA 128GB SSD back in july, some kind of XPG 2000 of some sort, i really don;t remember. after 4 months it got nuked by something, and i didn;t run more then the OS and some apps on it, just intended usage. so i got the upwards mentioned Samsung SSD, this one is working fine, although, sometimes when i power the laptop on, it simply lags (yes, lags) at the bootup screen, when those dots run in cirlce, windows 10 style, it has lie 2 FPS and hangs like that for ever, i have to power off and on again, sometimes when i rename stuff it hangs after i press enter for a while, before making the effective file rename. Any ideea why is this happening?