[cell9840179419]

React can be a way forward. But it won't automatically improve the perf. First take a look at your middware if you have decision making power on that. The slowness can be mitigated using microservices and graphQL. Without this enhancement, widget to widget, PHP/jQuery is hard to beat.

There are many ways to write react. Take a solid boilerplate like react-boilerplate. Then bolt a good dashboard template on it. Get rid of crazy stuff (redux etc) Use Material. Write simple Functional components using hooks and tie everything together.

When you are rewriting, let go some stuff that you don't need.

Source: we are in the middle of what you want to do.

[ciaran-ifelse]

Are you rewriting same functionality but in a brand new project or are you adding react components to an old project?

[cell9840179419]

Adding a new subsystem (30%) and bringing 90% of old in to react. Just plain convert did not justify the investment as our existing system is already written for perf. The only issue is the UI feels dated. It is Tomcat based.