TanStack Start SPA option causes huge lags

[ProfessionalGriefer]

Describe the bug

I use TanStack Start with the SPA option.
When reloading the page it takes more than 6 seconds for the form to show up.
In the Chrome Profiler I see that it is awaiting a Promise for more than 5 seconds.
This bug happens with the Material and the Vanilla renderer.

Expected behavior

I expect that the SPA flag does not have a significant impact on the page loading time.

Steps to reproduce the issue

• Use TanStack Start to create a new React project.
• Add the jsonforms dependencies and any schema.json and uischema.json file.
• Use the Material or the vanilla renderer
• Enable the SPA flag

// vite.config.ts
const config = defineConfig({
  plugins: [
    ...
    tanstackStart({
      spa: {
        enabled: true,
      },
    }),
  ],
})

Screenshots

No response

Which Version of JSON Forms are you using?

3.7.0

Package

Core

Additional context

No response