currently have spectrum internet (300+ mbps down /20+mbps up) using a ARRIS TM1602 been using it for a few years now and always notice a bit of lag and ping spikes.. after some research and comparing to your "good" list with my ISP my only options seem to be the TC7610 or the TC7610E .. what is the difference between the two? and would It be in my best interest to downgrade my service to the 100mbps package if im taking this route?