@hikerus I meant that after update of AndStatus it could start syncing just when You started to use it. Hence bad responding sometimes...
This can mean that your device is not good at multitasking. I would recommend you turning off "Sync while using AndStatus“
Regarding your question on "Don't sync old messages.." it clearly says "hours ago", see the screenshot. Maybe translation improvement is needed at https://crowdin.com/project/andstatus
?! https://loadaverage.org/attachment/3274648