Looking down is REALLY effective at reducing lag on the switch version of the game (and probably other console versions too). I saw Froob doing it at certain points in some of his runs, but only a few times here and there so I didn't think much of it. I was comparing everyone's times during the follow Nick section of the game since that whole portion should just be an autoscroller. Most of the runners who used the strat of either staying far behind or far in front of Nick had very similar times, and my time was only a few seconds slower. I figured the only difference was probably lag, so I started looking down more and more. Originally I had a time of 6:22 tied with Jadeithe, and both Froob and techninja701 had times of 6:17. When I tried looking down a few times I got 6:01, and when I did it as often as I could during that 6 minute drive, I got a 5:43. So I started looking down during every car ride and at any point in the game really. Saves a bunch of time. It's also really funny when you don't see where you're going and crash into other cars at top speed, flying 100 feet in the air.

tl;dr To paraphrase a wise Goldeneye speedrunner: look down and haul ass

I was wondering how much that helped, but I haven't had any free time to try it! Amazing.