Maybe things will be getting better?
From the Club Orient "Winter 2015 Update" Newsletter that just came out...

IMPROVED "SURFING CONDITIONS" ON ST. MARTIN!
Up until last year, the Internet availability on St. Martin, and particularly at the far eastern end of the island where Club Orient is located, was extremely limited. We had to live with 6 mbps of service in comparison to an average mainland house that operates on 40 to 60 mbps of available bandwidth. Fortunately, early last year, our Internet provide (Dauphin) was able to more than triple our bandwidth to 20 mbps!
Although the hurricane took down Dauphin's main antennae on the island and set us back for several months at the end of 2014, the Internet connections continue to improve and we're happy that (unlike the majority of mainland resorts) we can still provide our guests with FREE Internet as a resort amenity!