I recently encountered the following sentence

> みんな思うたより緊張しとらんのぉ

I understand it means "everyone is less stressed than I expected." What I
don't understand is why it is 思うたより rather than 思ったより. Is this to represent an
accent/dialect here, like the のぉ instead of なぁ? For the record, this character
uses a bunch of stereotypical western stuff I think.
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2021-10-26T18:55:59.660
90910
2021-10-27T00:22:45.677
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question
usage dialects dialogue
I don't get the meaning of 思うたより