VPS Specs
Your VPS is a Basic VPS from New York City Servers - which has the specifications below:
CPU: 1 Core
Hard Drive: SSD Storage 30 GB
RAM: 2 GB
MT4 should allow you to open up to 99 charts - but as this is an entry level VPS it may not be suitable for that many charts and EA's running unfortunately, as all the additional data processing may struggle to function smoothly.