Hmm I might be a little bit biased because I don't like this song, but to me it would strike me as the basis of the relationship is good but the rest isn't. I'm not sure I would select it for a first dance. But it's up to you! We aren't doing a slow song either.
I LOVE this song and I think you could slow it down if you didn’t want it so fast. Definitely talk to your DJ about it. My sister-in-law wanted Empire State of Mind by Jay-Z and Alicia Keys for her first dance and her DJ actually turned it into a slow song for her. They can do incredible things!