If the the bike has a triple ring crank, in "small-small" then the problem is mostly operator error. You could shorten the chain by one link to improve the function of a gearing combo that you shouldn't use, but a better solution would be to find an identical gear ratio in a different spot on your drivetrain. Using a gear that involves more teeth helps spread the wear around, keeps the chain from slapping on the frame and makes you look like you know how to operate a geared bicycle. Try matching shifts more often: simultaneously shift both derailleurs to a bigger ring.