Running V7.5.5 on VM. For some reason i have been experiencing very slow performance from the gateway. Designer project downloads take forever and saving changes to the project constanly suffer from connection timeouts.
I would look at the CPU and memory usage. Also, how much of each is allocated to the VM? You can also look at the task manager while working with Ignition to see how much of each is being used. Alternatively you can also look at the Diagnostics in the Designer, it is located under the Help menu.