I must be doing something wrong. :) Because my renders seldom take over 10 or 15 mintutes to do. Here, try this set-up. Try to set all the numbers and checks exactly the same and see how long it takes you to do a render. If you want something fancier later on, increase the pixel sample and decrease the Min shading rate. If you need to do reflections and refractions, increase Raytrace bounces to around 4 to 6. But this is a good place to start.