Discord having trouble with other applications

discord will bug or high ping with any other voice application running, my friends need to open teamspeak to post respawns slowling changing them to discord but its hard for me to make them change it when its bugging with team speak, im sure theres a solution around it, and i would love to have it solved.

im trying to make people change from team speak to discord but when its bugging with teamspeak as they test it, its hard for me to tell them it works LOL