Hi,
Sorry for the delay, I was ill last week.
There are no ameliorations, the interface is unusable now :-(
Here is the request who took very long time (304 secs):
# Time: 160628 15:31:16
# User@Host: mailwizz[mailwizz] @ [127.0.0.1] Id: 157
# Query_time: 304.479513 Lock_time: 0.000230...