Often enough, mobile devices now account for 40-70% of all online traffic. Yet, users still have significantly lower conversion rates for mobile devices. There are two main factors that lead to low conversion rates are website convenience in terms of user interaction and performance which means load times of web content on your mobile device.
Quite a new technology PWA is increasingly common in discussion of possible solutions for improving a website load time, along with more powerful servers, caching systems and clouds.