Extremely laggy PC with powerful components

[Demos_the_pc_N00B]

I recently built a new PC with:
32 gb G.Skill V DDR4
ASUS 1060 dual
Gigabyte ga-z170xp-sli
i7-6700K (water-cooled in coolermaster genome)

It runs worse than my old PC that had 16gb RAM and a 960, what could the issue be?

 

[gskill support]

Do you have the latest BIOS/EFI and drivers? Run some benchmark tests to see if CPU/RAM performance is normal

What in particular seems much slower?

 

[Demos_the_pc_N00B]

I'll try BIOS drivers but I think is more to do with my system a whole

 

[gskill support]

Sounds like excuse to buy Z270.. xD

So if you are wondering about the whole system, the CPU and memory benchmark test will show if core hardware is running as it should be. You can compare results with your older computer. Also, a SSD/HDD can significantly change how well an OS performs, but you did not list complete info so these are just ideas for you to consider.