This is the full list of strategies I used to get my 4:35, thanks to @Droosy for helping me find and test some of the new ones since previous WR.

0. Use N key to go to next level, use R key to reset level, makes menuing instant instead of needing to click the buttons. Honestly, I don't know how there were 5 runs of this game before anyone realized this. 1-3. Aim for the box on level 1 and you won't even need to move your mouse for the next two levels.
1. Shoot to the left side.
2. Spam dummies at the ball when it goes over the first gap, hope for one of them to punch it.
3. One shot into the yellow boxes, one shot into the booster. 7-9. Pretty self-explanatory just shoot at the right time really.
4. I use a lineup of a certain brick in the wall for this level check the run (once it's approved)
5. A lineup on the top row of bricks to shoot high and slow and hit the ball early.
6. This one is just getting the timing again.
7. I use a lineup one row of bricks down from the edge of the window, again just check the run for the lineups, easier to just see them.
8. Shoot when the fourth ball rolls off the first bar, this will get you in to hit the 5th ball without getting blocked.
9. You can get your dummy to clip through the yellow bars in this game, use that for 15. Just spam dummies at the target and if it falls, reset the level and try again. (Now that I think about it, this might be possible in 14 as well but I never tested it)
10. This level contains the most inconsistent strategy of the run. It's possible to get a dummy to slide from the right bar straight into the ball but it doesn't happen often. I tested every possible lineup, shooting different amounts of dummies, different shooting timing to push them down NOTHING I could think of is consistent. I ended up just going for the slide strat but still shooting the left bar, worst-case scenario you use the ball to push your dummy and still end up hitting the target a few seconds sooner than waiting for it to roll.
11. This level is kind of a pain sometimes but just aim for the middle booster on the left.
12. Shoot above the box.
13. Immediately shoot right.
14. Couldn't find a fast strategy for this level, just hope the target ball doesn't go the wrong way.
15. Shoot to the left and you can get a dummy to hit the ball very early. If they don't, shoot to the left side of the bar right above you and they can slide off of it to hit the ball.
16. Straight shot across.
17. Spam Dummies at the bar and get one of them to hit it early. This level is extremely long if you don't get this. 24-28. Nothing special here. Just play the levels as normal... but quick.
18. Go for the bottom box so it's just a straight shot across to the target.
19. Get the ball moving and then knock the bar on the left away so you can shoot straight to the ball when it gets there.
20. A timing level but I spam and hope for the best.
21. Can just shoot straight down on this one and the dummy comes up from underneath the target and hits it.
22. This is another level that is just not consistent at all sometimes platforms carry you, sometimes you just fall right off. I shoot 4 dummies up and try to use them to pinch one toward the other side.
23. Get the ball moving and take out the bar closest to you so the ball falls straight down.
24. It is possible to clip through the bar here to touch the target almost immediately, I only managed it once though, still worth going for as it ends up making the ball roll faster anyways.
25. Timing, Timing, Timing.
26. 2nd booster from the bottom is where you want to shoot.
27. Shoot 2-3 dummies into the 3rd opening and they should hit the ball.
28. Quick shot to the right.
29. Get the ball moving, take out the close bar for an early hit on the ball.
30. Spam Dummies into the bar until one of them hits the ball.
31. No fast strategy here, knock boxes over, hit the ball.
32. One guy into the center, one guy to the right.
33. Lineup using the edge of the left "eye" on this level.
34. Shoot towards the bar on your left. You want to shoot around the 5th yellow stripe from the bottom but it's not a very exact shot at all, just shoot in that direction and you should fall into the ball.
35. Knock the ball over, Pray for a quick roll and hit it. It's possible to have the ball roll the opposite way so you can hit it early but it isn't consistent.
36. Another timing level.
37. Spam Dummies into the top left corner and one of them should fall and hit the ball.
38. This level likes to screw you over and not make the target ball move at all, to combat that I move the close ball with 4 dummies then move the far ball with 1-2, 4 is too many for that area, then shoot at the close boosters to push the far ball again for extra speed as it passes by.
39. This one is a pretty exact lineup using the AC thing on the wall. I've been shooting 4 in the general area and push the target block into them if I need to.
40. Immediate shots toward the ball to get a dummy to punch it.
41. Don't really have a fast way for this one, I just knock over the tower with a few shots and then spam like crazy to push blocks out of my way.

Hope you enjoyed this wall of text if you managed to find it. Good Luck :)