Batch Renaming PSD Files Speed Issue

I have previously used TIFFS in Bridge for batch renaming images and have not had an issue with previewing images in my content folder and the speed of batch renaming. We have recently switched to PSD files and batch renaming has become a nightmare and takes now a usual speed of 10 minutes to batch rename 8-10 photos. Given I need to rename thousands of images, this is a significant issue I cant seem to resolve. I have the most updated version of Adobe as well. Does anyone know how to resolve this speed issue?