I can guarantee you that there are no shortcuts to melting your wax. As far as I'm concerned, why would you even want one. Your candle centers around the wax you use. Heating wax in a microwave makes it too difficult to observe and control the temperature of your wax. I have never used a microwave to heat my wax due to the fact that it never was presented as an alternative when I began reading about candlemaking. I can understand how a newbie would be excited and would want to enjoy the fruits of their newfound passion as soon as possible.
Let me make it as clear as possible, heating your wax in a microwave is NOT a safe alternative. Wax is an oil based product and has a flashpoint, reach it and there goes your wax, microwave and possibly the kitchen.

It is nearly impossible to regulate the wax temperature consistently and one could easily ruin the wax. Burnt wax is of no use because it will not retain it's scent and it just doesn't smell very good. Using a double boiler, crockpot (with a thermostat) or turkey roaster will assure proper temperature control. Set your wax to melt and then take the time to prepare all your other candlemaking tools. This will help manage your time more efficiently. Making candles takes time, but it's well worth it.