Well, gonna give my input:
So at most Hajime physically can reach 216 metagons while his strongest physical attack at most reach 1 Gigatons, so it's quite obvious who have the AP advantage. I Hajime side however he have the fact that one of his first moves is Riftwalk which is a 10x speed amp, this can futher increase with Limit Break and Overload reaching an 36-60x speed amp, and since he can sense power levels on top of have instincts that tell him about things before they happen and Foreshight which, is quite probable that he directly go and use Overload.
AP gap aside he can also ignore durability which several artifacts, like using poison with the Needle Gun, grenades, Arachne golems or Alvus, with spatial manipulation via spatial grenades (which distort space), Pile Bunker-Gatling Pile Bunker (the stakes are coated with spatial magic to pierce through anything), Cross Bits-Cross Velts (can crreate spatial barries by isolating space, self-explode with spatial explosions and I'm not sure of this but they maybe can even fire normal bullets with spatial magic though I'm not sure of this part), Orestes (they are portals that can shrinke cutting everything caught in the middle of them), Bolas (they don't ignore durability but grap space around the target to prevent them from free) and I sort of remember Schlagen ending enhanced with spatial magic though I need to reread to confirm, Grenzen is an artifact that blow away magic power with the shots so though it don't do actual damage it can potentially consume all the energy of the other side, the sound grenade use ultrasonic waves to attack the opponent. He himself also have powers able to ignore durability outside of his artifacts like his shockwaves which can damage the internal organs of the enemy, his fear and madness manip which have various layers, and his conceptual (Type 2) EE via info manip.
This is also true which would probably give him various more things to this.