My computer is a little dated but still should be enough to run something like Tixati with little problems. Specs include Windows 8.1, first generation i7, 8gb of ram, SSD system drive, and a couple of storage drives. I've never encountered this sort of problem with any other bittorrent client or application for that matter. I tried adding exceptions to firewall/antivirus as well as disabling them but to no avail.
My issue seems to be similar to the one posted in this thread:
http://forum.tixati.com/support/264/