An early 722.6 with 200,000 miles, not good.
If the transmission feels like it’s taking off in a higher gear at a stop,

there can be a stuck valve in the valve body. I would first
Scan all the modules for any codes, if none, remove the transmission
Pan, check for heavy metal contamination in the filer and pan. If
You have a small amount of metal, change the filter and have
the transmission flushed