The pro strat is to develop a bionic arm so you can do three papers at once. Think people think
Actually, the real leap forward is to combine subjects.
For example, do a Physics Trial with your right hand, but answering in (say) ancient Greek, and with the left hand write a textual analysis of the Physics paper and the responses, then a creative writing task about the experience of the student carrying out these activities (both in French), then compose a Shakespearian sonnet on the life of a locked-down HSC student.
That lot should take 2 to 2.5 hours (being generous), and have revised Physics, Ancient Greek, French, and Extension English.
Then, an MX1 paper with the left hand and an MX2 paper with the right hand, and you've done 13 units of study in about 5 hours... by that time, it's 10 am, and you've earned a 15 minute break to have breakfast.