ESX server on VPS uses a lot of CPU usage

[Epri]

This will help you find the cause for these lags:

Speeding up your Server 101 (Windows)

Speeding up your Server 101 (Windows) Setup Tools used in this 101 UIforETW, we will use this profiler to generate a trace of the for the server. mysql-async 3.0.7 or newer. Running with the set mysql_slow_query_warning 50 line in the server.cfg HeidiSQL, because it is visually well-designed for us to improve database structures. Links randomasciis’s etw package This should install the Windows Performance and Assessment Toolkit. HeidiSQL, just to visually represent your database. Findi…

Your VPS could just be so underpowered but i believe you also have too many heavy resources which you will find with the link above