Does anyone have any experience with Instart Logic, and its effects (if any) on SEO?

[Natalie2012]

Instart Logic is a content delivery network CDN, which claims to have a positive effect on time to first bite (TTFB). Faster site = good for SEO, right?

Our initial investigation seems to confirm its claims to some degree, which is great, but at the same time we think it may lower our score on Google's PageSpeed Insights tool, which sort of negates its effect in other areas. If the user experience is worse (according to Google's own tool), are we effectively shooting ourselves in the foot by concentrating on TTFB as a ranking algorithm factor?

For reference: https://moz.com/blog/improving-search-rank-by-optimizing-your-time-to-first-byte

[Stramark]

Google likes speed! But users like speed as well!

But google only punishes those who are among the slowest in their category. So you should focus on the experience of your users. Using different tools to optimize your code. Although it is google's speed tool, it is certainly not the holy grail of testing or a ranking full blown ranking factor at this time.

The article you refer to is inspiring.. but written within a context.

Companies that spend time and money on SEO optimization will eventualy spend time and money on speed metrics. thus the best companies com up high in google