It's a big heavy beast that wants some revs to pull off smoothly. Let it have the gas it wants. You'll never hurt a V4 1300 by burning gasoline through it. My Venture is still new,
I'm in Flatrock, about an hour away, if you want a second ear to listen to it, but what you describe sounds like normal behaviour to me. I'm in the member list and the VR assistance list. Always up for a ride, coffee, and possibly truthful, but generally not, tall tales about rides. And, yes, the weather isn't helping. The weather office has a lot of nerve trying to describe this as 'spring'.