Henry, not that we have seen.
This, https://github.com/thedaviddias/Fron...ster/README.md, is more than SEO and breaks down all the complexities a web site has to overcome.
When you get to the bottom, only then consider if the costly "Performance Tools" are needed. Perhaps you can then advise Xara of unnecessary bottlenecks in its coding approach.
Acorn
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