Fork drop isn't the issue based on those photos. The Roadster handles like a smaller bike than it is. If you're accelerating out of a turn the bike will stand up, as
@Jhortz described, but you shouldn't have to fight to hold it in a turn. As I and others have suggested, I think you have a bad front tire. Go about 30mph and, OK, don't fully let go, but make your hands a big enough "C" shape around the grips that you are barely touching. Does it shake and shimmy? I have a feeling it might