Hi,
this is quite a high load (2,44) but it might depend on the count of CPUs you have assigned to the UCS. For two or one CPU it is a relative high load, for more CPUs it should be fine.
What bothers me is the high 38,9% of IO-Waits together with the very high and variable usage of the swap. I bet this is (at least) one reason for the behaviour.
Please chek this article regarding performance.
/CV