Resolved Sp Simple Portfolio Menu

I upgraded the Sp Simple Portfolio to the latest version so I could use Sp Page builder to create the portfolio.
I have the module built into a sp page builder page, problem is the new version seems to require a new menu item in order for the links to open.
For example I have a menu page called portfolio that opens the sp page builder page called portfolio, but when they click on a an item it takes them to a component page, so I had to create a new 'hidden' menu called 'portfolio hidden' so that the item opens correctly.

Now the issue is this completely changes the url structure and is devastating for seo as I have lost all of the old urls and the new ones are awful!

Example -
Old url - *** to cover names -

/portfolio/***tackle-gun***.html
/portfolio-hidden.html?id=26&view=item

How do I fix that ???
Thanks