The left ventricle pumps blood to the body in its systolic contraction. One of the symptoms of early heart failure is an enhanced contraction. It's just one sign among many of a problem.
At first blush it sounds like a good thing but as the heart compensates more and more for the uunderlying problem it becomes reshaped slightly ("cardiac remodeling") and eventually the increasing contractility is self defeating and the dilated heart becomes a poor pumper with a resulting lower and lower ejection fraction of blood with each beat.
You need someone to take a good close look. It might be that you just have slightly more contractility than average. Probably you should find out your ejection fraction...they may have measured it during testing?
Call your cardiologist and ask him to tell you all the ramifications of your "enhanced contractility." Perhaps more testing is in order (angiography, calcium scan, MRI?)
How is your blood pressure? (Working against hypertension is one of the main causes of the increased contractility.)
Is your overall heart size ok, that can be seen on a simple X-ray and the echo certainly would mention it?
The result could mean only a slight deviation from normal with no reason to concern yourself, but ask an expert to be sure.