Direct drive electric models often need to be flown in a special manner to get the best out of them. You need to let the model come up to speed and then modify your flying technique and maneuver presentation to keep the model's flying speed up high. Or if you do trade speed do it for altitude so you can get the speed back again by doing a maneuver with a diving entry.

Very tight pylon type turns and tight radius loops are big drag generators. Keep the maneuvers open and loose. Try to work with less throw. Large control throws are draggy as well.

In short fly it open and fast like a jet and it'll be fast. Try to horse it around like a 3D model and it'll be dissapointing.