Don't rush chord changes. Even when you become experienced and are learning something new and not familiar (I was learning some of Elvis original guitar player, Scotty Moore and had to do this). If you keep on drilling chord changes and try to them up to speed the first time, you'll be frustrated and probably not get it.

Just take one chord change (example an A to a D and back) and practice is slowly until you start feeling like 'ok, that feels a little less awkward'. Then speed up...a little bit. Slowing things down is one of your most powerful tools as a player and will always be one of your most powerful tool. Even if you become an expert. It may feel like 'this is dumb, I feel like a child playing this slow'. The point of taking your time is to get your fingers comfortable with the location and strings you're trying to fret.

You'll realize that slowing down during your practice time will speed up your progress.

In learning Scotty Moore's stuff (That's All Right Mama), there's nothing he plays in terms of what chords and lines he chooses that I haven't played in one way or another over the years but his style and timing are what brings it to life. Even if I've playing these chords, to get it down to his style, I gotta take my time.