No mobility skill shouldn’t be bothersome unless build itself canceled every option of it in CR. Even though you have no mobility skill, some classes also have viable mobility passives else an alternative for boosting movement speed. I don’t remember many builds in CR doing this, they usually have an alternative.
No Spirit Walk on WD? Fine. Do I have Fierce Loyalty passive with any pet or Soul Harvest- Soul to Waste, from Set bonuses? How about Horrify- Stalker with Tiklandian or Rechel? No Dashing Strike on Monk? Do I have BoH- Zephyr, Inner- Intervene or Epiphany? You always have more than one approach for solving mobility.
If I don’t have any of those then it’ll be a slog with meticulous placement for pixel pulls, if I do have either then Challenge Rift just want you to challenge it for motor skills and keeping track of buffs.