Disable or improve Jobs&Experts form auto-fill

I have Jobs&Experts setup along BuddyPress on a multisite, it works fine but since last update I noticed an issue with the search functionality in message fields.

First the autofill popup after you enter a single character in the field. While before it was three characters.

The other important issue is, it auto-suggest every member, instead of just the ones related to current user through BuddyPress friends.

Any possible workaround to limit the autofill to only related(BuddyPress friends) members ?

Or maybe even disable the autofill feature in the messaging textbox.