Ask HN: CS PhD or Continue in Consulting

hi, currently im working in a consulting company, is full remote, and good paid, but i dont love what im doing, is really stressful and i dont learn a lot. one of my old professor after 1y that im working text me if im interested to start a phd (in italy) i don't know if i'm interested to accademic path, but the phd is really long (3y) for sure is really chill respecting to consulting company(i'm on call 24/7 1 week each month too) but the salary is the exactly the half. i have to choose in 1 week, i don't know what can i do.