Gonna sound funny but check your FOB Battery...mine did the exact same thing the week before Bike Week. Wouldn't crank, then acted all sluggish but started. Got up to the local Winn-Dixie shut bike down wouldn't start. After I tried and checked everything and all checked good, I grabbed the fob pulled the Battery and went into the Winn-Dixie and bought a new one with a replaced fob battery the bike started right up no problems since. Weird isn't it? Oh well I was just glad thats all it was.
Good luck and be safe.
Good luck and be safe.