So it's recently been brought to attention that there are some quirks about the game that can greatly hinder or improve your runs. They aren't required to post good times but they certainly help in achieving them. I'll update this any time something new like this comes out or if something gets fixed, like the attack speed bug.
FOV and Planet Jumping: What FOV you have directly affects how planet jumping will feel. A high FOV results in an almost instantaneous planet jump, but you sacrifice an amount of max height achievable with a planet jump. A low FOV results in a really delayed planet jump, but will consistently get more height than that of a high FOV planet jump. You can test this out in several places in the hub world, many jumps are make-able with low FOV that high FOV cannot make.
FPS Cap and weapon attack speed: The amount of time it takes for a weapon to complete a single cycle of animation is dependent on frame rate. Use the ingame setting to cap FPS to either 133, 121, or 61 for the fastest attack speeds. You need to be consistently hitting your frame rate cap to make sure you always have fast attack speed, otherwise it can vary between attacks.
This will also increase the amount of velocity you can generate while climbing with planet jumping or boosting behind you for speed, as a higher attack rate will equal faster planets being shot. Please note however that with accelerated attack speed comes a bug or two, biggest one being that a weapon can consume two mana for one shot. This is most apparent when planet jumping in IL's that have very little mana to give and takes all to get an optimal time.