It could easily be +- 5k or even more depending on the type of company.
Would 93k meet your living expectations? How do you judge the company, a startup trying to squeeze employees for a couple of years or a bigger company with non-monetary benefits (canteen, flexible hours, career path...)?
With 93k in Zurich you could be tight or make decent savings, depending on your lifestyle.
However, there are other differences which may be more important than then 10K difference between min and max. In these post-Covid times, it's cheaper to work from home. Not having to go to the office pays. If you're brave(*) enough and work is flexible, you may even live in a boring commuter town where rent can be 1000 francs less per month than close to the office in ZH.
I work as engineering consultant and there are sales bonuses about a month or two of salary that are very welcome. There's other stuff like food at work, REKA checks, company phone even transport subsidy (I just remembered I need to ask this money). So, what are the extra perks?
(*) brave = boredom resistant
If you have a family however it's a low income, especially if you're the only one working. I now earn much, much more (same company but went through promotions, salary increases etc) but with 2 kids my costs started to skyrocket. Just imagine 1 month to send them to Hort once a week but eat at school costs me about 900.- CHF. Then there's the car, insurances, 3rd pillar...
Long story short: by yourself or with your partner, it's not bad, in fact, it's good. With family, car and other fixed expenses, starts to become really low and you should consider carefully.
So all in all my suggestion is, consider what I said and what you are looking for, then take a decision...
Many employers are getting foreign employees 'cheap' because of the exchange rate. My partner got numerically double her euro salary which is now actually more than double in euros.
93 for MSc with 5 years is ok, even though I'd expect it to be already closer to six digits. But it depends on the field. If it is some generic non-pharma related job (i.e. chemical/electrical/mechanical engineer), seems about right.