Fru Gal Boutique review for RT: Page Speed Booster

I installed because alerts stating my online store was 58% slower than competitors. So I am trying it out to boost the speed for customers who use a mobile device and to make their shopping experience pleasurable. So far its okay didn't boost much but some. I thought this would boost more but just a couple of percentage higher than it was. Still looking at options on boosting my speed without having to purchase a premium theme.