Bic Super Magnum Too Wide?

I used to body board when I was younger, recently I moved to the coast and want to get into surfing, problem is I am over weight but hoping surfing will help with this
I'm looking at getting a BIC Super Magnum 9'4" as it says it can handle my weight however I'm concerned about the width of it, the stats say it is 27.5" wide, isn't that going to make paddling a lot harder?
Is there a rule of thumb on chest size?, shoulder width?, arm span? compared to width of board?
Or am I worrying about nothing ?
Cheers!

I'm looking at getting a BIC Super Magnum 9'4" as it says it can handle my weight however I'm concerned about the width of it, the stats say it is 27.5" wide, isn't that going to make paddling a lot harder?
Is there a rule of thumb on chest size?, shoulder width?, arm span? compared to width of board?
Or am I worrying about nothing ?
Cheers!