Not necessarily ditch, but add some high rep front squats or split squats after your heavier work.
Iām not saying ditch the heavy weights. I am saying whatever youāve been doing needs to change if you want different results than youāve been getting tho
If all you have been doing is squatting heavy for low reps then yeah, you may want to experiment with adding higher reps somewhere to your leg workouts
youāre also only training legs once a week, maybe just adding a 2nd workout will be enough volume to stimulate more Hypertrophy and less neuromuscular strength
My suggestion isnāt a direct suggestion. Thereās tons of effective ways to get your legs to come around and youāre not limited to just any one in particular. If I were Iād consider alternative methods to what youāve been doing IF you want better legs
You look great tho and it looks like youāve got good potential
Your arms are well developed, perhaps swapping your arm day for a 2nd leg day may be beneficial. Keep Sunday as a heavy leg day and use Monday as a high rep, hypertrophy day. Throw biceps work on the end of back day to keep yourself happy.
What does your back day look like as well? Not being rude, but your lats are non existent in many of your pics