You seem to have a lack of tension in the first bot, if you aim with very little tension the whole time, you will simply not be able to consitently keep up with the bot speed especially when it changes direction so keep some tension when you percieve it going very fast or when it changes direction.
For the second bot, you need to trust that the bot will continue moving in the y axis the same way you trust it will continue moving in the x axis. I see you not following the bot when it goes down and up a lot and sort of just floating your mouse in space. Unfortunately, using your fingers will only help so much when it comes to these motions and you will have to start using your arm to move on the y axis a lot more especially on larger movements.
Bot 3 is probably another tension issue. On 32cm you should be able to just do the same thing you did on bot 1, but read the acceleration more and use your arm a little less.
In general use your wrist to adjust to sudden changes and use your arm + wrist to continue tracking in a direction. Fingers I really don't think you need them very much to get Master or really anything below Nova+ as long as you play on standard sens like you are playing on. Fingers are not really important for the actual motion you do with them at this point, just focus on your comfort in your grip and maybe offsetting tension to them at times, but not necessarily moving them to follow the bot motion.