Hi, If doing pictures in volume, like a prom, the time with each couple is very brief. So, you probably don't have the time/want to spend it retouching every picture you shoot. It's a volume business, operating against a brief timetable for finished products.

All suggestions given were good. Most can be applied by you for this setup in the future. 1) move the background farther behind the stools so it is more out of focus. 2) Select a smaller aperture for your picture. 3) A hair highlight would help define as well as increase the appearance of sharpness. 4) You might benefit from a 2x viewfinder magnifier so you can see the eye/point of focus more clearly. Many of these flip up, out of the way, so you can check the full image composition. - Try these to see if your photos are improved to your satisfaction.

Then question if you have "set the bar" too high for the type of pictures you are making and the intended buyer's expectations. If your customers expect better results, you might be looking at higher power light sources than you are now using, etc. Beyond lighting, the Nikon 24-70 is an excellent lens. I have one. And I have a Tokina 24-70 that is sharper in my photos as well as DXOmark sharpness. The question will become - do you need it? Try to borrow or rent one for a week and determine if you can see a difference/improvement in your photos of your customers.

I agree with other responses... unless you plan to make a huge print from this image, or heavily crop it, it is plenty sharp!

You might do a fine tuning of the focus of your lens on your camera, if you haven't already done so.

It's also pretty easily improved with some post-processing....

Just for example, below are:

1. Your original without any changes other than being somewhat cropped and enlarged for comparison.

2. A gently and selectively sharpened image, using unsharp mask technique. I prefer this method for how skin is rendered.

3. A slightly stronger, selectively sharpened image using high pass filter technique, as well as some slight blur applied to the background. Her hair is a problem doing this quick example... but with care could be dealt with better. While high pass filter sharpening technique works well for some things, I typically don't care for the slightly coarseness it renders on skin.

Be sure to look at these downloaded and enlarged, side by side. Both methods of selective sharpening also tend to boost micro contrast.

I think the photo could be sharper. I can't tell if it is a minor camera shake problem or not. If it is, a faster shutter speed might help. Lightroom has deleted much of the EXIF data and done who-knows-what to the image. A copy of the photo straight out of the camera (converted to someting viewable, if needed) would help. As an experiment, I would try taking a photo 2 ways, 1 through the viewfinder, 1 via live view. If there is a front or back focus problem, this will highlight it as there is no such thing in live view.

There's a possibility that the lens is suffering from de-centering. De-centering can make one side of the image sharper and the other side softer. In your image, the young lady's face seems a little sharper than the young man's face. There is enough depth of field. I bought the Zeiss Seimens star test chart to check my lenses. All the lenses I have checked so far check out alright. This is an excellent video that shows how to do the test. He gives a link to where you can download the chart. There's an ad that runs before the video. Just click on skip ads.

https://www.youtube.com/watch?v=QVD2Q-3HbVo

Maybe you have another version can caused your concern? From the version attached, when viewed at the 1:1 pixels, her right eye couldn't be sharper in the screen capture, even though the screen-capture process loses some of the sharpness of your posted image file. When you scroll down from the young woman's eye, everything about her dress and his tux are in sharp focus. The gentleman seems a bit softer only in his face
(eyes) through the diamond stud / ears, all portions that appear ever so slightly behind the woman and the plane of focus on her eye. Her flowers also begin to soften being just outside the plane of sharp focus. You might experiment at f/6.3 or f/7.1 for couples at this same shooting distance for the slightly larger depth of field.

Do you have a specific model on your computer?

Which operations in Photoshop have slowed down?

Does your computer have one or two drives?

The AMD APU probably has a built in integrated graphics processor, the Radeon HD, which is not a separate graphics card. I bought the radeon video card separately later because i was told it would help with editing photos. The selection tool, refine edge was slow before but now after the most recent update it is way worse

The choice for SSD entirely depends on whether you have an m.2 slot or need to rely on the SATA III standard connectors for 2.5" and 3.5" drives.

I am not all that sure an SSD will solve all of your problems, but the system will boot faster and programs will take less time to load if you replace the system drive with a faster SSD drive. If your graphics are integrated on your CPU, or APU as AMD refers to it, then you will likely get more of a boost by adding more memory, taking the system from 16gb to 32gb, and possibly adding a small SSD-SATA drive to perform as a scratch disk.

The more I know about your system the easier it will be for me to help you avoid going down a rabbit hole with all sorts of confusing and misleading, but well-intentioned advice. It's just plain irresponsible to make recommendations without having the full picture.

I have an HP laptop and I went on a binge last year. I upped from 8gbs of ram to 16gb, went from 128gbs SSD m.2 to 1TB WD m.2 and lastly from the 16gb of ram to 32gbs of ram. In January this year I moved from Win7 to Win10. I don NOT use any Adobe CC programs but have Elements 15 installed on my laptop. With Win10 I got installed Adobe Creative Cloud desktop installed. Two weeks ago, I booted up the laptop and EVERYTHING started slow including the boot up. Adobe Creative Cloud came on the screen and stated that Adobe CC needed to be repaired. It tried to repair/reinstall it self BUT got stuck in a loop and NEVER repaired itself. It also keep my FireFox browser from opening. I was stuck. Hours later I settled down and tried again to boot again, got the same screen about the Adobe CC needing repair. I got Opera to open and I went to Adobe's website and looked for Creative Cloud Desktop program to install. I clicked on it to install and waited.
When it finished, I when to reset the drivers by going to power and restart (NOT shutdown). This time the OS started normally and worked as usual. Still confused about why and went to google but all I found was a program called Adobe Creative Cloud Clean. Not being a real techie, I did not want to go through all the hoops that was shown. The laptop was back working so I stopped where I was at. There is always next time.
This week when I stopped at Best Buy I talked to a Geek and of course wanted to sell me a yearly subscription to a service plan. NOT! As to the OP's need of an SSD, it will be faster but I am not sure it will solve his issues with Adobe. Win10 opens faster that Win7 but since I already had an SSD and improved the ram I have topped out the laptop. Thanks for reading. Anybody else have an ISSUE with Creative Cloud Desktop??