The timers for Submarine, Snowboard and the Countdown clock (like in Mako reactor) are now all frame-based. So even on a slow comp, timers will be fair (as they are in PSX). Beforehand, every game you played would be different slightly... totally unfair and unhelpful.
The snowboard one was slightly trickier because it works in milliseconds at 60fps. Adding 16 each iteration would be 16 * 60 = 960 (40 short of 1 second). To get around this I have made it alternate 17-17-16 so the first 6 frames (6/60 [1/10] of a second) look like this > 17 , 34, 50, 67, 84, 100. This does mean that a snowboard time will ALWAYS end with ms of 170, 340, 500, 670, 840, 000, but that's how it has to be.