my VPS has gone really slow!

[Euler]

When you say, ask for a new VPS, do you mean ask for one of the same spec but just a new VPS, so replacing like for like or do you mean something else?

Switch VPS's (same spec) if you can't find a particular reason as that may put you on a different rack or server that is less stressed.

When you say, the resources could be stretched on the host you are using, do you mean company wide or on the set of shared hardware I m using with other customers (going by the quote I posted in my previous post on the thread where I quoted another user)?

When you have said, a simple way to test that would be to switch, do you mean switch company/provider entirely or as in the first above point, just switching by asking the current provider for a new VPS?

Usually individual servers get stressed. You could be sharing a blade with somebody that is killing performance of the whole unit. So switching should move you to a different blade or rack.

In terms of Task manager what do people consider to be acceptable levels to be running at? For example what are you running at when trading, as I have nothing to compare it against so it is hard to know what is classed as being stressed. My CPU usage is around 50 - 75% usage (it is constantly changing), though sometimes it can go right up to 90% (which I would assume is stressing it) but in normal pre-race trading it sits around 75% and Memory is 1.23GB of 2GB available and stays pretty constant.

If it hits 100% then it's stressed, but below that it should be ok.