Redoing wth lime plaster is the "best" way to do it, but it's a messy job, and not that many plasterers do lime.
Out of interest why this specific type of plaster - i.e. what kind of property does it have that others do not?
It breathes. For old houses built without cavity walls lime plaster on the inside, lime mortar for the bricks and lime render for any rendering will be better than cement-based products
@bq started
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Out of interest why this specific type of plaster - i.e. what kind of property does it have that others do not?