Hi, welcome to Julia. It would be easier to help you if you shared some code. Could you share a small example which highlights the problems you're having?
Also, have you checked out the
Performance Tips? One major thing new users run into is the global variable issue. Note that if you are working directly in the REPL, that is the global scope and Julia cannot optimize very well there. Instead, if you wrap your work in a function you'll see that it does much better (time it twice since the first time will include compile time).