Test performance of profile picture loading and caching
Check that performance is acceptable when loading a conversation with a large number of profile pictures (eg a forum with posts from many contacts).
Depends on #1845 (closed). Subtask of #214.
Check that performance is acceptable when loading a conversation with a large number of profile pictures (eg a forum with posts from many contacts).
Depends on #1845 (closed). Subtask of #214.