Considering I spent thousands of dollars on my bike, I don’t mind taking 20-30 minutes every few rides to give it a cleaning. If you want to protect your frame, I’d suggest getting a clear frame protector sticker kit. But nothing takes care of a bike like good old-fashioned cleaning and maintenance. Taking shortcuts will only lead to shorter lifespan for your bike and its components.
Finally, I don’t think applying candle wax to a bike is a good idea…I think it would look bad, melt in the hot sun and crack and flake in the cold…I also wouldn’t be surprised if it was damaging to the finish of the bike.