I have a Teclast X2 Pro with Win 10

Teclast X2 Pro Review - A Powerful Surface Clone

Now it has stopped working, it takes forever to log in and everything just freezes after just a couple of minutes. I have tried to format my drive and reinstall but with no success. I did a memory test with MemTest86 and everything was fine. Is there something else I can troubleshot to find out what can be wrong?