Crowd predictions are not an exact science.
We don’t ever hunt for the “perfect time” to go. Nobody really knows how crowded it will be when. We go when our whole party of 10-12 can go. Sometimes it’s busy times sometimes it’s slower.
But, we don’t ever expect low crowds. Then if they’re low we are pleasantly surprised. We’ve had amazing trips during bonkers bananas crowded Easter/NYE trips and amazing trips at the beginning of Sept. when there have been very low crowds. Don’t let the crowds get you down. Next time, just assume it will be jammed no matter when you go and you might be pleasantly surprised
You’re also approaching a pretty busy holiday weekend for WDW.
Have a great trip!