Monterey234SS

I own a 2014 Monterey 234SS with a Mercruiser 300HP 350 Mag with 130 hours. When shifting out of neutral the engine takes a few seconds to go into gear and makes a clunking feel and noise. Just got an oil change and drive lube replaced at 110 hours. Not sure if it’s related to gear shift problem but got a drive lube low alert and drive lube is showing low. What could cause this?