I have been a fan of the raspberry pi for years, ever since I was 9 infact, and now I have managed to win in the astro pi contest and get a free astro pi kit! I have an old model b pi that I used (and still do) to use and it tended to use a good amount of cpu if there were any resource hungry software. With the newer model for the contest I might want to be able to use most of the cpu because although it is being used, when it comes to rescource hungry projects it ends up using 20-30% of the cpu. and it ends up being a tad bit laggy. atm I might try to use the task manager just in case you can change the priority like I usually do on my linux laptop. If there is a way, it would help a lot because although it may not be necessary with the coding (although it would run a bit faster) it would be good to try speed things up without having to do any dangerous overclocking (which I will not do since it is not the best way to keep your pi undamaged).