Duke William of Normandy won the battle because was well prepared and had a good army. They prepared carefully for the battle. The Normans had knights on horseback who were skilful fighters.
A utility knife, metal ruler, and a hammer can be faster than trying to carefully saw an opening. Score the drywall a couple times till you are most of the way through, then just knock a hole with the hammer and break the drywall back at the score lines.
Drill through the holes in the bottom plate into the concrete slab with a masonry drill. Thoroughly vacuum concrete dust and debris as you work. Step 5. Drive the 3/8-inch anchor bolts through the bottom plate into the concrete with a hammer. Slip a washer over each anchor bolt and tighten it down with a nut. How to Install Drywall on a Concrete Wall