spit up formula fed baby

I know spit up is normal and I've been dealing with it for 5 months as I'm sure most of us have lol. I thought by now it would be less and I'm annoyed every time I try to go somewhere we both have to change clothes twice. It's more quantity now almost like vomiting but not forceful it just flows out of her mouth. She does not complain. Any tips on what you have done that has helped reduce spit up? I use enfamil gentlelease should I change?