There's three things that come to mind.
1) Why are you using squats? Leg presses work the back of your legs and the front of your legs, that's why you can leg press more.
My answer:- That's not true. You can leg press more because you're supplemented to the seat pressing the external load over 45 degrees which factors in half the gravity in comparison to a squat, leg presses are quad dominant and are a MACHINE which allows your body to work only in a single plane of motion. The squat works the sagital plane significantly and overloads various muscle groups, it is considered the king of mass building exercises and causes testosterone and GH production in the body. If you're not satisfied with your squatting results, actually squat to or below parallel instead of your half squats.
2) Hey, mister, does this machine TONE you?
My answer:- Toning is dictated by bodyfat, exercises don't "tone you", they can build muscle but you have to be lean to be considered "toned", unless you're a genetic freak. Toning is more in the calorie deficient and intense cardio, not a machine fly.
3) The best overall mass building exercise is a machine fly.
My answer:- Shut up.