Game not responding

Hi, I am wondering if anyone else has this problem and if they managed to fix it.
This started for me a few weeks ago back in November and I ran out of ideas to try.

At all loading screens, the game stops responding for about 5-10 seconds then works again as if nothing happened.

Any clue as to what is doing this as it recently started doing this.

I am using windows 10 64-bit.
I have 16 gigs of ram
My graphics is a Radeon RX 580 GTS
I have WoW running on a new ssd (that also has windows on it)
My CPU is an AMD 8 core running at 4 ghz.

Before anyone asks, yes I did a full reinstall of windows onto that ssd and got all windows updates and all driver updates for all devices.