"Not than Wally actually, but he'll mock the NA with major ease."
Zoom is faster.
The first Zoom/Twayne owned Wally until the end when Wally used full speed and he wasent expecting it.
The second Zoom (the one that showed up in " Blitz"😉 So far has showed to be on another level above what Wally can achieve.
With the exception perhaps of the recent crossover with Wonder Woman.
Super Speed: Zoom has been fused with a random wormhole which allows him to travel in time. He can control how fast or slow he moves ahead in time effectively giving him super speed. This allows Zoom to travel at high velocity’s make multiple attacks and create sonic booms by clicking his fingers.
Super Speed: The Flash is able to speed at multiples of the speed of light, has control of his molecular vibration which allows him to pass through solid objects and can impart kinetic energy to objects turning normal materials into superfast bullets. The Flash's costume is made out of solid speed force energy. The new suit cycles excess energy away from Wally, reacts to shape itself subtly against air resistance and acts to absorb momentum from impacts. The Flash's powers are due to his connection to the Speed Force, an other-dimensional, nearly sentient energy field that powers all super-speedsters. When he hits light speed he is catapulted into the Speed Force with an effect that often means that he enters the timestream allowing him to time travel under the control of the Speed Force.