The one thing that gives Toppo the edge against Sidra is how Frieza handled the hakai energy from each respective destroyer. From an out-of-universe standpoint, Frieza's flashback of tanking Sidra's energy and his inability to handle Toppo's was likely to emphasize the fact that Toppo was pretty darn powerful as far as destroyers go. Maybe not at the level of Beerus or Belmod, but at least a few tiers stronger than Sidra seems fairly reasonable.
Although Frieza only had a taste of Sidra's energy, one could argue that Toppo wasn't going all out either. I also don't really adhere to the whole Sidra has more experience as a destroyer argument since latent potential seems to have a lot of value in Dragon Ball. Toppo could have simply had more dormant power that was brought forth through his training.
Although Frieza only had a taste of Sidra's energy, one could argue that Toppo wasn't going all out either. I also don't really adhere to the whole Sidra has more experience as a destroyer argument since latent potential seems to have a lot of value in Dragon Ball. Toppo could have simply had more dormant power that was brought forth through his training.