Interesting - once I got into a rythym I didn't find tex-ing live lectures actually that time consuming. I think it really depends on the field of math though, maybe?
I also use a markdown + inline latex setup rather than tex from scratch.
I found it was relatively easy to type and tex everything that was written on the board. But I think my comprehension probably suffered a bit, though maybe that would have happened from using a pen and paper too.
I also use a markdown + inline latex setup rather than tex from scratch.