I'd echo the parent comment. I hope you can get some paying users to sign up. The first place I would spend money is on a top-notch copywriter. I really like some of the copy but it feels disjointed as a whole.
When you say that it's for small businesses and it's really efficient and light, I think people will identify with that. As long as features keep getting added to platforms, we will always need a super lightweight version. Again, I hope you get some paying users right away!
I think I'm just missing something and I see these as clashing messages that don't get fully explained: this platform will make you smile and you'll have fun using it, this platform is faster than other platforms, and it's built for small businesses. I'd ask you "How?" for all three of those.
Just some thoughts from a marketer who thinks about positioning and looks at lots of landing pages. I hope you ignore all advice, trust your gut, and have tons of success :)