1800x slow is it my MB or is the CPU faulty?

Hello,

 

I hope someone can help this very frustrated man.

 

I use to have a 2500k, 16gb ram, 1080 GPU and it ran very very well. Now after several years of thinking I should up grade I got myself:

 

1800x

16gb ram

Gigabyte GA-AX370-Gaming K3 AMD X370

 

All put together fine but its SLOWER than my old rig. One game I played on old rig ran at 50/60fps on this rig its 15fps. Another game that ran over 100fps is now running at 40fps. the system seems to a bit slower at booting.

 

The bios is up to date. Ram running at 2900 gpu driver up to date.

 

I just don't know what is going on. Anyone got same set up that had these problems and fixed? to be honest any help would be welcome