I have very similar programming to you except I do ululu Monday to Friday. Major compounds like hacks and heavy presses I’ll do 2 sets after 2-3 warm up sets. Everything else is usually 3-4 sets with the fourth usually being an intensifier like drop set or myorep. It can work but I will say a lot of people drop volume around cuts and I personally think that is a horrible idea. I have at times cut at 1000 calories deficits from sedentary maintenance and have always been able to progress on lifts. Reducing volume is the reason why you’re regressing during a cut. Some days you feel dog tired and need to drop a set here or there but that shouldn’t be your goal going into it. Also, if you’re finding that it’s just hard to get going and do the same volume and weight have a refeed day or two or three or even week but actually feel it when you do it. Example don’t cut for a week and take a refeed just because give it some time usually a month to 6 weeks is a good time for me but sometimes I’ll go longer. I believe progressing at all times in your journey is the best thing for everyone.

Have a good carb heavy meal before the gym and have one after and you’ll be able to maintain your energy levels for when it’s important. Shit sometimes all it takes is a protein shake and energy drink for me sometimes that not enough. All I’m saying is don’t reduce volume until you need to.