CAT6e can handle more bandwidth and travels at a higher MHZ band.
Bandwidth has nothing to do with latency. Frequency, while affecting latency, isn't going to change just because you use Cat6 (And even then you wouldn't even get 0.0000001ms reduction in latency for 100 feet run).
I can have a 1000000 BAZILLION gigabyte connection and have 5 hours latency.
