LaTeX: Performance tune-up needed

On Overleaf, typesetting LaTeX documents is pretty fast, but the time required grows quite quickly when your document reaches about 70 pages.

For my master thesis, I needed to start a premium subscription trial to be able to typeset my thesis in full for submission.

I cancelled the premium afterwards, but it felt it should be able to tune up LaTeX performance - given contemporary CPUs have multiple cores.

Seriously? pdflatex thesis.tex 326.88s user 0.94s system 99% cpu 5:28.49 total That's 11 minutes every time I build that document. I pretty much already watched all of Youtube so this is not funny!

-- Christian, https://tex.stackexchange.com/questions/122116/how-to-prolong-compilation-time-while-engaging-in-leisure-activities/122382