Reply to VCI 400 latency issue?

Hi folks, I'm trying my best to decide between the S4 and the VCI 400, as I believe many, many people is. I was doing some research on the internet when I read about this major issue the 400 could have with Windows users. I read of some controllerists getting like a 160 (or even more) ping, which unables you to cue juggle and in some cases to play with pre-recorded loops, as well. Did it happen to any of you? Is there any way to solve this (firmware update, software update)?