how can I make a zoiper aplication to run fast on my computer

Question

how to set a high priority for zoiper

Answer 1

Zoiper will already prioritize the important threads to work well.

You could manually increase the priority but you should not have to (and it might not be a good idea).

You can find more info here: 

http://www.eightforums.com/tutorials/40287-cpu-priority-shortcut-program-create-windows.html