Juno 106 sliders sensitivity

I noticed that the sliders on my Juno aren’t as responsive as when I control the synth from my computer with the Juno Editor. Through the Juno Editor the each parameter has better resolution and I can dial in finer sounds. Is this the fault of the analog to digital interface of the synth, or do the sliders lose their responsiveness and sensitivity as they age?

To make it clear, the sliders are clean and lubed and they certainly work well, but the response is better when using the the editor.

Thoughts on this? Did anyone notice a big improvement in responsiveness after swapping sliders?