Aula f75 or 84he

i just got my aula f75 and i like it but i feel as if the delay could impact my gaming, is it worth returning it and getting the 84he for the hall effect as it is only 9 euro's more? Also how does it compare when it comes to typing and sound since i also do school work on my pc. I game semi competitively it differs alot so im not sure wether it would be worth it and if the difference is big enough