Calves are no "more genetics" than any other muscle group.
All of those factors (muscle belly and tendon lengths/insertions points, etc.) are already predetermined and really cannot be changed (except through illness/injury/surgery). Forget about those. What can be changed are muscle size, body composition, even muscle fiber type (to a degree).
The truth of the matter is that the OP is: 1) probably not eating nearly enough; 2) is probably not training all that hard (especially if his home gym set-up is not ideal); and 3) probably isn't hitting legs as hard as he should.
Assuming he doesn't have some sort of medical condition, the issue can most likely be attributed to one or more of those three things. If the OP is doing all of those things correctly than he has reached his genetic limit and must either be content with his current status or hop on a bike.
Overall, nikkas (especially natty ones) swear they bout that life and go harder than a bytch but use poor exercise selection, don't progressively overload, have poor form/technique, skip workouts/apply inconsistent effort, and then undereat/under-recover and wonder why they don't look like freaking superheroes.