The phrase "better implementation" refers to the act of improving how something is done or put into action, in order to achieve better results or outcomes. Full definition
Right now it's an experiment with a not very good implementation of itself. (n4g.com)
The scanner now works with a simple touch, which is a far better implementation than the swipe version found with its predecessor. (androidauthority.com)
A very much better implementation of an Android tablet indeed. (intomobile.com)