Interesting - to me 30 ms is pretty bad. I've got a ThinkPad i5 with 8GB running Win10 and can get in the 10-15ms range in Ableton Live Suite 9, and I have access to a SP3 that I might be able to test out. Granted, I don't think the design of the software is for "live" type use but I have noticed there are some 'sweet spots' for certain programs in the buffer size, e.g. Kontact doesn't like lower than 128 for some reason, whereas Traktor Pro doesn't care in the least.