I don't believe the CPU will be overloaded. You simply run the EA on your main timeframe and then run a different EA on the others. This second EA will not perform anything other than checking for a signal telling it to take a screenshot. The signal ...
I've only used two VPS providers for running MT4: 1) Ultrahosting.com - terrible, have to contact support every other week which tells you everything you need to know. 2) VPSLand.com - never had to contact support, no problems, highly recommended. ...