How To Stop Lagging In Dog Obedience?

Well, if you are only using positive methods, then all you can do is encourage and praise and give treats. But, you do say you correct her, so that is using a negative. I would go back to on-lead for five minutes of a training session and then use a lightline for five minutes and then unclip the lightline and do a Recall and Long Down off lead. You need to have all training sessions out in public places with distractions.