Hi,
You have only 2 pages? It`s using some plugin or cache on nginx? I think you can achieve a great result if we change the config of nginx/php to use microcache. Have you do any test of load to know how many users your website can support concurrently?
I can help you optimize your website. You have a vps/cloud, can we chance config of nginx/php?
Best regards,
Gustavo