Question Lower internet speed on new router

Feb 16, 2019
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Hello, I have bought a new router from my ISP. I had some really really old one and I had 9mbps download. Now I have the new one, its 5GHz, ac and some other new features and download speed is 6mbps. How is that possible? Should I set something up? The router is located at the same exact place.

Thanks a lot