There is no need to rush I would follow this widely excepted procedure for curing live rock unless the rock which you have is cured and you transported it to your tank in saltwater.
Place the live rock in a new 30-gallon plastic garbage can. Consider adding bottom drains to the container to speed draining and water changes.
Completely cover the rock with freshly mixed saltwater, with a specific gravity of 1.021 - 1.025.
Use a heater and keep the water temperature near 80 degrees to speed die off.
Provide constant water movement with a power head or airstone.
Keep the area dimly lit to prevent algae blooms.
Perform 100% water changes twice weekly.
Gently scrub the rock with a new nylon bristle brush or toothbrush between water changes to remove any white film or dead material.
When the water conditions stabilize and ammonia and nitrite tests are zero, the rock is ready to be placed into the display aquarium.