On your sample bring your exposure up just a tick and you are done his eyes are fine, 5 seconds max.
Do not brighten eyes and teeth, waste of time. Only clean up MAJOR blemishes unless the shot is just a headshot then more may be required.
You are overworking your shots.
Take them in jpeg, get your settings how you like them in cameras regarding sharpening and contrast. Shoot Auto white balance, it will normally be right or very close.
Process in Lightroom. Use Auto Sync to adjust exposure as necessary for groups of photos with similar lighting. Go through them quickly and adjust crop if necessary, keep cloning to a minimum...I very seldom to any cloning.....people just don't notice that stuff.
Do a universal sharpening on all of them at once.
Using this process my average processing time is 100 photos per hour.
99 percent of my photos are processed completely in Lightroom, a few get extra skin processing and a few go to Photoshop for more work.
Of course this is portraits.......landscapes are a LOT more work.