I have found and fight two small things. One which can be cured with 3-F-5. The other and I will call it rhythm and tempo is lost, both, no confusion here. It is all related to Tension. Tension first in the upper arms (primarily the right) and that for some unexplain reason leads to the pivot going to heck in a hand basket, tempo increases and the results, well at times I know if I would have used a putter I would have had a better result.
Don't know if you are experiencing the same. It took me a while to identify the tension problem, the tempo was easy to note as different and the loss of rhythm show itself as well.
I havent beat it but I do on occasion manage to overcome it. Focusing on 3-F-5, is where I am at as well as shaking the arms at times to ensure I don't try and tighten up.
Someone had suggest I go back to humming an old tune in my head to try and stay even.