Timestamps for my route are off by a significant amount

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https://abrp.upvoty.com/b/report-a-bug/timestamps-for-my-route-are-off-by-a-significant-amount/
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I have noticed when planning my last few routes that the time of travel is way off. For example, this route that I am sharing here should take roughly 7 hours but I am getting a result of > 16 hours with ABRP.
Here is the URL for my route:
https://abetterrouteplanner.com/?plan_uuid=fbb201e8-b0c0-4574-9482-02a8a8c611de

Please advise