were you using bfa warforged gear or tbc socketed gear? They raised the ilvl of tbc gear so its much better but across the board they nerfed defenses so you might not be able to pull the whole dungeon at once unless you're instantly deleting everything.
they also nerfed the shadowlands trinkets so the totem doesn't work until 35 and the ooze does much less dmg depending on your timeline. I still see wars so I think you're good but might need to swap which expac you que up dungeons for (ooze does much more in tbc) or grab some quick upgrades. Oh they also fixed most of the enchants to finally work on low lvl gear again so you might just be buffed if you didn't have your stuff fully enchanted prior.