very sluggish GUI when downloading..

[loady]

I recently upgraded my server hardware, it now sports an intel i5 and 16gb of ram, the cache is a 128gb SSD, i have  CP, SB and SAB all running well but i have noticed when i am downloading that the UNraid GUI is very slow indeed, not sure why as i thought it resides on the flash ?..it takes nearly a minute for the page to load and if i click through to another it will often time out.

 

I have included a picture of my system stats so not sure if you can see anything unusual from that...