Hi Guys, I'm having some problems with performance in some VMs on my T20. I've checked the CPU/Memory utilisation within ESXI and it looks absolutely fine. The problem is I have especially on one Windows 10 (Fresh install) VM is that they are running very very slow, MSTSC sessions dropping, extreme lag etc. When I've checked the task manager on the affected VM CPU and Ram utilisation looks healthy, lots of head room with around only 27% Ram usage and 30% CPU. I've allocated 2 CPU's to more intensive VM's, 1 CPU to the normal ones and all have a decent allocation of RAM. Sometimes when I remote in to the box it runs absolutely fine but then other times it is completely unusable. I have 4 VM's running in total at the moment. ESXI reports the following stats in monitor: CPU: Used: 4.5 GHz Free: 8.3 GHz Memory: Used: 22.66 GB Free: 9.25 GB Spec: 4 CPUs x Intel(R) Xeon(R) CPU E3-1225 v3 @ 3.20GHz 32GB Ram Sometimes when I remote in to a VM it runs very very slow for a while and then will become blistering quick, almost like there is some sort of lag whilst the hyper-visor re-allocates resource to the active VM. However I don't understand 1) Why this takes so long to get decent performance restored, 2) Why performance is so bad when there appears to be lots of computational resource available in the first place? Has anyone else experienced this? Or can shed any light on what is happening?