How’re y’all making progress so fast at the gym?

I’ve been super consistent at the gym for almost 3.5 years now, eating well and getting adequate recovery. Granted, the first year of it was mostly a lot of cardio and machine exercises. My bench is only around 90 kg (tbf I’ve only been benching properly for around 2 yrs, but still), 140 kg squat n 160 kg deadlift.

Obviously you should not compare urself to anyone else, but why is my progress so slow?

For reference, I’m about 5’ 10 and 80 kg.

I get plenty of protein from diet, but don’t take additional supplements like whey protein/creatine.

Edit: thank you for your kind and insightful responses, everyone :)