Thanks, I took some random photos after your comments, and I found a few issues with the setup, one to little light. I added two more lights and found I could keep the iso around 100 with a shutter speed of about 1/120, so as soon as I can get my subject, (my wife) to take a few more, I'm going to see how this works
You should get much,much better images with the ISO in ther 400,320,250,200 range; if the studio lights are not very bright and are continuously on lights (like LED bulbs or incadnescent light bulbs or fluorescent light bulb types), then slower shutter speeds, in the 1/30 to 1/8 second range, will likely be needed with ,"Studio f/stops" like f/5.6 or f/6.3 or f/7.1 or in that mid-sized aperture zone.
For flash photos, the shutter speed is not much of a factor, since the bright "Flash!" of the light is much shorter a duration than the shuitter speed, so the lens aperture number (f/8 or whatever) is important, but a range of shutter speeds can be used with fairly equal results.