Over zealous text replacement

I love how the text replacement that I programmed on my phone syncs on the iMac, but if I'm typing a casual 60 words/min, text replacement will highjack my sentence when I don't want it to. I do not have this issue on iPhone or iPad.

For example, I have "Wh" programmed to "When do you want to come have a look?"

But if I type "where" I get "When do you want to come pick one out?re"

Unless I slow down to 60 or so characters a minute.