Veeeery sloooowlyyyyy working :(

My App/Pages Support link:

Describe the bug:
Very slowly working after last updates. 11\04\21 - the work speed was at an acceptable level. 11\05\21 - very slow. Amount of data has not changed.

I also noticed that previously large lists were cached - their opening and searching after the first time occurred almost instantly. Now the download happens every time.

How to replicate:
Open in menu “Штрихкоды” , press “plus” button, open first choise on form

See video:

Hi! The problem is still relevant, users can’t work properly, and I don’t understand how I can help. Please help me find a solution!