Same volume of work just different grouping. Can it really make that much of a difference?

I’ve recently had to change my workout schedule due to time constraints. Still doing the same volume of work as I was previously but now on different days of shorter time.

Monday: accel + plyos Tuesday: full body lift Wednesday: rest Thursday: max v + iso work Friday: (occasionally and nothing crazy) core + upper work Saturday: accel + plyos + full body lift Sunday: rest

Every 4th week I do a deload and start a new cycle.

What I’ve noticed on this schedule over the last two months is that by the time I hit the deload week I’m very tired. But after that week i feel good again. I never felt this way on my old training schedule and normally deloaded not because I felt like I had to but more because I knew the benefits that would come from doing it.

TLDR: is it too fatiguing to break days out like that? Is this workout schedule sustainable long term?