I noticed that in some circumstances (when opening the app after it has not been used for a few hours), it takes a long time (>15 secs) to import the list of revolut users when in the “send money” /“request money”, “split” window. It would improve the user experience greatly if the list of Revolut users were ‘cached’ locally on the device and the synchronization process only looks for new users in your contact list.
I find myself using the “search” feature of Revolut to find a revolut-contact (in order to send or request money), rather than going through the drawn-up list because of this inefficiency.