Just a suggestion. You could try installing something called "netbalancer" by seriousbit (http://seriousbit.com/netbalancer/ http://seriousbit.com/netbalancer/

Just a suggestion. You could try installing something called "netbalancer" by seriousbit (http://seriousbit.com/netbalancer/ http://seriousbit.com/netbalancer/ assuming you're on windows). It allows you to throttle network usage per program.