Hello,
If you check the main tips to improve the TTFB https://kinsta.com/blog/ttfb/ you see that the main things are: – good server – cache plugin – CDN
We installed the cache plugin and check the results that we get. TTFB – 0.5s if our theme is activated and 0.5 – 0.8 http://prntscr.com/p5aafe if default WP theme is activated, here you can check few different reports of default theme https://gtmetrix.com/reports/www.bears4u.co.uk/yCiST67R and https://gtmetrix.com/reports/www.bears4u.co.uk/5HUbbBFk Much better results I think and PageSpeed and YSlow Scores with our theme are even better than with the default WP theme.
Besides one your third-party plugins generates error http://prntscr.com/p5a61d it also slows down the page speed, so contact plugin author to fix the problem.
Regards
