Proton Calendar on iOS being painfully slow

Recently moved away from Proton Calendar due to the lack of search functionality on the iOS app. Never found it to be slow and actually quite like the look of the UI. If they could just add search, some decent widgets and further improve speed + functionality, it would be the perfect Calendar app for me. Tuta is incredibly frustrating with how long it takes to load events almost everytime the app opens. Adding events can also be quite buggy. It’s only the search function keeping it in use.