Not bad at all! Something I do a lot when shooting in a controled environment (ie. not wildlife or high speed action) is I use the manual setting and intentionally underexpose the shot. I will underexpose anywhere from 1 to 3 stops. A lot of good things happen from this for me. First you can increase shutterspeed and/or aperture and/or reduce ISO, all of which will increase sharpness. When you are shooting raw it is much more realistic to recover detail in dark areas than recovering detail in blownout, overexposed highlights. I would much rather have dark areas than bright, blown out areas. So much easier to fix in p.p.
Now, I have never shot under LEDs and this may be a different animal.