In the case of DR Dragon Skins, they are a coated string - there’s varying opinions on this, but coated strings can have a more subdued high-end tone that their standard uncoated counterparts. Coated strings have come a long way over the years. The conductivity issues and “condom on the strings” concerns are mostly a thing of the past, but they are not the first choice for those looking for the brightest and clearest tone.
If your term “gravitas” can be translated more recognized terms like “zing” or “piano tone”, than you may be missing that in your current coated string experience. I’d be surprised if a change to uncoated strings doesn’t get you back to the tone you’re looking for.
DR uncoated strings are a good choice, as well as D’Addario nickel or stainless, or GHS Super Steels.