How to create Approximation model of energy and daylight analysis

Hi, dear community.

I want to make an approximation model of daylight and energy analysis. The purpose is to reduce the time of analysis for a quick and dirty optimization process. I prefer to do it mathematically but as far as I know, it can be done by changing Radiance Parameters for daylight and changing the Shadow Calculation type, Time Step, and Frequency for energy analysis which I’m directly affecting the engine.

I thought it is better to change the equation by removing the time in daylight (instead of analyzing for a year and then extracting specific hours) or something like this which made a new one that could reduce the time of analysis and somehow propose a new method of simulation.

Is there any suggestion?
I hope @mostapha,@chris,@sarith, @AMIRTABADKANI, and other experts could help me with that.