Hello,
to me your observations seems quite normal. I never counted the matings but I usually watch courtship behaviour and matings in my paros during one or two (or three?) days, too. It’s not “all done” with one single spawning. I’ve watched the female in spawning colours with sexy eyes visiting the cave very secretive, almost trying to look inobtrusive to not upset the male which was already guarding the cave. If he lets her in they mate again – if not he chases her away and she has to try again later …………
After these “mating days” she loses interest in the cave and leaves the whole business – to care for the clutch – to the male.
I can not say how many eggs are produced in how many spawnings ………… I do not control the cave so closely.