Can a Footballer lose his touch if he changes boots?

Since i changed my boots midway through the season last year, i have struggled to score goals. This is in no way down to fitness, as i have worked harder on my fitness ever since then, believing that was the problem. when i wore my old boots, i scored 11 goals in 15 games, now with my new ones i have scored 4 goals in around the same numebr of games. WTF???