Split/routine refinement

currently this is my routine:

monday: cardio then legs

tuesday: chest and tri then cardio

wednesday: back and biceps then cardio

Thursday: rest

friday: shoulder and abs

Saturday: rest

sunday: 50/50 if I go to the gym or not. depends how I feel and I just have fun and do whatever I like

i spend about 2hrs in the gym right now. I’m looking to minimize time and maximize gains.

what do you think would be a better split for muscle growth (lean bulking)?