Squat: multiple breaths between reps?

By the time I get to my third or fourth rep on my heavy set of the squat I have to pause and take multiple big breaths before the next rep. I’m pausing, I dunno, 5 to 15 seconds before the next rep. Is that ok or are you supposed to do just do a single breath between each rep? Or does it even matter?

For context, I am 180lb, 6’1”, still working the novice template C. Squatting 215lbs and it’s feeling very, very heavy.