jQuery Sortable Items Float Right Sorting Not smooth Issue

jQuery Sortable dragging is not working smooth when items are float right. I try to fix it without success and I don't understand why it is an issue.

To reproduce and understand the issue, you need to try dragging the items and you will see that sometimes you like to place an item at a place and the placeholder is stays at another place. see the attached image to understand better.

enter image description here

When removing the float:right property it will work good.

Note: Its a little hard to understand the issue, I reproduce it on jsfiddle but you need to play with it to understand it

https://jsfiddle.net/royshoa/4Lprn9bs/72

I will be happy to get some answers for that.