If your load average is less than the number of cores in there, don't worry about it.
easy way to think is.. a load of 1 for 1 cpu system is 100% if your OS sees 8 cpus.. a load of .78 is nothing.. a load of 8 is something to check into
REFERENCEShttp://serverfault.com/questions/346893/load-average-cpu-linux-server