Ive yet to have a lucid dream

so i cant try this out myself, but in previous dreams ive experienced a fight with someone and my arms get all slow motion-y, i cant hit for excrement anytime it happens, its like im punching under water. I read online its because of your REM or something, so you dont actually swing your arms while sleeping, but in a lucid dream is it still the same? weak/slow punches? or since your conscious is awake you can control the strength ? this topic really intrigues me