It looks dirty.
I use Once and Done and find it at home depot or lowes it will clean and shine your floors here are more ideas
Here's a great article from Bob Vila that should help you. Be very careful with store bought products. My experience has been that many contain wax and that will buildup on your floors and it eventually has to be removed and that is not fun. I'd suggest trying Bob's ideas first. Wishing you the best.
Thank I will try this, and see if it will shine again. I will post before and after pictures