Not fixable warning on build

When i’m trying to build my app for web. It does succeed, but i’m having warning that i
can’t really fix by myself such as :

expo build:web
[====================] 100% (73.6 seconds)

Compiled with warnings.

asset size limit: The following asset(s) exceed the recommended size limit (244 KiB).
This can impact web performance.
Assets: 
  ./fonts/MaterialCommunityIcons.ttf (503 KiB)
  static/js/app.7cdde456.chunk.js (492 KiB)
  static/js/2.b451d84a.chunk.js (1.74 MiB)
  static/js/2.b451d84a.chunk.js.gz (530 KiB)

entrypoint size limit: The following entrypoint(s) combined asset size exceeds the recommended limit (244 KiB). This can impact web performance.
Entrypoints:
  app (2.22 MiB)
      static/js/runtime~app.efa64587.js
      static/js/2.b451d84a.chunk.js
      static/js/app.7cdde456.chunk.js

webpack performance recommendations: 
You can limit the size of your bundles by using import() or require.ensure to lazy load some parts of your application.
For more info visit https://webpack.js.org/guides/code-splitting/

Search for the keywords to learn more about each warning.
To ignore, add // eslint-disable-next-line to the line before.

The issue is when your CI treat warnings as errors :

$ expo build:web
- Making sure project is set up correctly...

Treating warnings as errors because process.env.CI = true.
Most CI servers set it automatically.

Failed to compile.

How can i possibly fix this ?