Sacrificing salary is nothing new actually. Why do you think so many grads with strong qualifications are working ridiculous hours in big 4 with a miserly starting pay of 2.8k when they can easily get >3.5k doing other finance jobs?

Ultimately it is your choice. One thing is for sure though, if you find it painful to move now next time will be even harder. A lot depends on your ambition, the route you are at now most likely career ceiling is 10-12k salary as some local finance controller which is actually not bad.

Sure going down the big MNC route increases your career ceiling to maybe 40-50k or even >$1mil if you get group level positions, but it's not guaranteed and most people are not able to reach that level anyway.