Blizzard has released hotfixes that will decrease the spawn rate of elite monster packs in Dungeons, provide additional server stability, and fix various bugs.
HOTFIX 4 & 5 — JUNE 4, 2023 — 1.0.2 A server-side hotfix was rolled out this evening. Hotfixes occur in the background and will not require a client-side patch.Bug FixesFixed an issue where elite monster packs in some dungeons were spawning in higher frequency than expected. Further stability and bug fixes.Decreasing the elite spawn rate in Dungeons could be a response to an experience gain exploit that players have been using to speed-level in these dungeons. The decreased spawn rate of these elite monster packs should limit the usefulness of this leveling method.
Read more on wowhead.com