I'm getting 700 Mkey/s with these parameters -b 64 -t 512 -p 1024 but I'm also hearing a buzzing sound in my headphones while it is running. Is there any way to fix this issue or should I just try to run it on a cloud server or something? Also if someone has a different set of parameters that they think would be better I'm all ears.
I doubt BitCrack have audio functionally, most likely the sound was generated from another software.
Open your Audio Manager (such as Volume Mixer on Windows) provided by your OS and find out which application generate that buzzing sound, then mute that application.