Cheers for the write up S-Config.
I had another play with Autopimize and WP Fastest Cache settings.
Best I can get on google speed test is 85/100 speed on mob. 95/100 for desktop.
If I exclude jquery.js in Autopimize, I get 91/100 speed on mobile and 97/100 on desktop, but my product images disappear when browsing a product.
Richie