During initialization, your addon performs a scan of the Appearance category (transmogrification) .... function ns.UpdateSources(). This takes a few seconds, during which the ArkInventory addon (alternative backpacks) lags a lot, because it is also initialized during that time.

At the same time, tooltips do not work properly during this time (e.g. for quests or achievements), when their modifications (e.g. in addon Kaliel's Tracker) are constantly reset. After your scan is finished, everything will start working OK.

Impact on the ArkInventory addon - causes initialization lags, large FPS drop for several seconds, incorrect (incomplete) initialization of the addon.

Impact on other addons that modify tooltips - tooltip modifications are reset during your initialization.

Can you please look into this and fix these negative impacts?
At the same time, please add a public API to your addon to detect that your scan has finished.