In the Quelle Gambit, white responds to the black’s development of the bishop by capturing the pawn on the e5. Black plays ahead and provides more opportunity for white to go on pawn grabbing spree. If captured, then black counters it with a lead in development which is essential in a game.
1.e4 e5 2.Nc3 Nc6 3.f4 Bc5 4.fxe5 d6 5.exd6 Qxd6 6.Nf3 Bg4 7.d3 0-0-0 8.Be2 f5 9.Bg5 Nf6 10.Qd2 fxe4 11.Nxe4 Nxe4 12.dxe4 Bxf3 13.Qxd6 Rxd6 14.gxf3 Nd4 15.Bd1 Ne6 16.Bh4 Rb6 17.b3 h5 18.Bf2 Bxf2+ 19.Kxf2 Rd6
The opportunity for covering the entry of the black rook is given up.
Rd2 21.Ke3 Rxc2 22.Rhc1
Rxc1 .Exchanging the only active rook in the black’s camp
23.Rxc1 Rf8 24.Rg1 Rf6 25.Bc4 b6 26.e5 Rh6 27.f4 Kb7 28.Bd5+ Ka6 29.Bxe6 Rxe6 30.Rxg7 c5 31.Ke4
And the two pawns easily roll down the board to the queening square.
In the Quelle Gambit, white goes for the aggressive sacrificial setup but black player has to readily sacrifice another pawn and get a lead in the development and these are the positions which require precise gameplay to atleast stabilize the position if you are unable to take advantage of the sacrificed pawn,then this kind of opening is not best suited for you.