I will make some tests with shorter delays.
I don't think that many users using ev correction.
Yes, I was looking for that too, but I don't know how to stop the tracker process.
tracker-processes --terminate
/usr/lib/tracker/trackerd &
killall -STOP trackerd killall -CONT trackerd
killall -STOP/-CONT trackerd tracker-indexer tracker-extract gst-video-thumbnailerd