this doesn’t really make a difference they don’t make you hand calculate anything that hard and we had calculators in first sem anyway. usyd doesn’t do scaling which does make a difference but they tend to mark harder subjects/exams much more leniently in the maths faculty, which mostly offsets the difficulty difference (I experienced this first hand last sem I def didn’t deserve my result in maths lol). the faculty at least so far have also been pretty good in that they genuinely care about students, they made a ton of changes last sem based on student feedback throughout the sem
usyd comp sci does sorta suck tbh but a lot of the bad subjects are only in advanced computing not the bsc comp sci major so you can sorta make it decent by just doing that. it’s also a bit more flexible at usyd since u can do a double major with comp sci rather than having to do a longer double degree which can save a year which is pretty worth it