The Average User Suffers
The average phone will respond about 10 seconds late compared to a high-end one. If we take into account cheaper phones ($100 and less) + outdated ones, their response time will be delayed beyond 30s.
- Identify unused code and remove it (you might be shipping entire libraries for no apparent reason)
- Code Splitting – Rather than transferring bundles, send out small amounts of code at a time that are enough to enable visuals of a single page being viewed.