We have a test build up here on TestFlight and are specifically seeking out some testers who have been experiencing sluggishness with Clear 2.x on older devices with larger data sets.
This build optimizes Clear’s data sanitization so it no longer should cause scaling delays after any action that writes to your data. (Even sorting an item for instance, could result in a delay afterwards.)
If you’ve been experiencing these performance issues please first use this link to save out a backup of your Clear 2 lists (to Files app): https://tinyurl.com/2m7h4uar
And then install TestFlight app and signup for the beta + update to it here: Join the Clear Lists beta - TestFlight - Apple
Then let me know if it improves your experience, and of course please report back if you encounter any issues!