I don't blame you for not wanting to change your name.

But fundraising is a game to be played, and part of playing the game is building credibility with VCs. It may be that a quirky name helps with that, but probably not.

From the classic baseball movie Bull Durham, where the old veteran is explaining to the newbie how to be successful:

"Your shower shoes have fungus on them. You'll never make it to the bigs with fungus on your shower shoes. Think classy, you'll be classy. If you win 20 in the show, you can let the fungus grow back and the press'll think you're colorful. Until you win 20 in the show, however, it means you are a slob."

If you already have a track record, then you can have a quirky name or personality. Until then, you've got to play the game.