The OEM springs get tired after all these years of being pre-loaded.
I honestly would say just changing the oil to a 15wt fork oil will benefit you the most, but I normally often swap over to progressives springs at the same time.
If we weren't so afraid of changing things up, there are other springs/rates, and emulators that can be purchased and they are very adjustable.
Seems like lots of work, but once you're dialed in, you are all set!!
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country