Feel like I am doing the wrong type of training for karate

Bit of background story before I start: Last year I was doing powerlifting as a hobby until I essentially ripped my insides apart. I'm all good now and have been training for the past 6 months doing 5/3/1 (albeit with lighter weights). I started back at karate in Nov last year after an 11 year break and now want to put more focus into that. I've posted in the other forums re hip/ankle strengthening etc but I'm worried my workout which is more compound focused (e.g., deadlift/squat/bench/OHP) isn't really giving me the explosiveness/strength for kumite/kata etc.