CMOS Combinational Circuit Optimization

I'm seeking an expert in CMOS based Combinational Circuits and proficient in LTSpice to assist in my project with an eye to reduce its power consumption. Specifics demands of the role include: - Employ expertise in LTSpice simulation software. - Leverage knowledge in CMOS technology to maximize efficiency of the given circuit while reducing overall power consumption. - Exercise skills in combinational circuits to enhance effectiveness without compromising on circuit's speed.