DragonLancer
Hero
I cant answer that because I only ever played 2014 once and that was a short online campaign during Covid, so I wasn't familiar enough and I don't really remember. My experience largely has been Pathfinder 1st which we played since it's launch until recently when I decided to pick up the new 2024 rules and get back to D&D.Are you finding any significant difference/improvement in the 2024 version of 5e vs the 2014 version? If so, how so?
What I can say is this... using the encounter/CR matrix in the new DMG has made encounters more appropriate. Better than PF or D&D3.x ever did. I find that the HP to damage off monsters in 2024 has reduced the time spent rolling away to hit but that the opponents deal enough damage so as not to be a walkover. We're still getting to grips with the system but with the exception of one Legendary monster, combat encounters never go past 5 minutes and are usually done sooner. In a couple one shot games at my FLGS that I have run (converted PFS scenarios over), when there are newer players the fights can last a little longer.
One thing I have noticed is that unlike PF/D&D3.x, 2024 doesn't seem to use opponent's with class levels which must speed things up a little. The one PFS scenario I converted where I did create a NPC boss as a 3rd level Fighter, the encounter did last a lot longer.
Legendary actions did slow things slightly but that was down to not being something I am familiar with from previous experience and I did pause briefly to decide if I wanted to use and which ability. That will change with more experience.