Why does Hefei talk sound so corny? Is there an evolutionary history?

Hefei dialect belongs to the ancient Jianghuai Mandarin. It may be that the ancient mandarin was first combined with the ancient dialect of the ancient nest country, and some immigrant languages of Jiujiang and Huizhou in the Ming and Qing Dynasties formed the Hefei dialect in the past tense!

Now, influenced by Putonghua, in addition to the most rustic old dialect, Hepu dialect (that is, Putonghua is mixed with dialects, and some words are pronounced in Hepu dialect, which is neither the original Putonghua nor the original dialect pronunciation) has been formed!