I have tried the plugin but it doesn’t recognise the difference between left and right curly apostrophes.

I have a word on my website – e.g. say it was S’lott
Now the current word S’lott – would have a single, right curly apostrophe.
But what I need to do is to replace all instances of that word with S’lott – with a single left curly apostrophe.

Any idea on how I might achieve that?
Many thanks