I installed the new version. It seems to load the problem account much faster regardless of the state of the "Diable Running Column" option.
I tested multiple times first without and then with the option selected. I recorded how long it took to switch to the problem account and how long it too to display the apply charges dialog after adding a payment.
The average difference is only a few tenths of a second.
Reran the test under load. Hope this helps.....