Sublime text spell checking whilst typing mid-word - How do I prevent this?

Question

As you can see from the image below, I've yet to finish typing the word string but Sublime Text 3 build v3.2.1 shows a spelling error even though the word is not complete or the cursor has left the word boundary.

Is there any way to prevent this?

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Example of typing string mid word.

If you type in any other word processor this behaviour is not there and IMO this can be slightly distracting at times.