I installed Wordfence and like the security but I don't know about Falcon. It boosted about some great speed increases, but... I just switched to Falcon and getting much slower speed reports from Google PageSpeed Insights and Pingdom. Previously I was using W3 Total Cache and Cloudflare and getting pretty decent speed scores of 90+.
Now Adsense thinks my site is much slower.
62 / 100Suggestions Summary
Should Fix:
Leverage browser caching
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Eliminate render-blocking JavaScript and CSS in above-the-fold content
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Consider Fixing:
Prioritize visible content
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Optimize images
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Enable compression
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Minify JavaScript
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Minify CSS
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Minify HTML
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Pingdom - 71/100
Your website is slower than 74% of all tested websites