message: perf(compiler): remove `createProgram` for `isolatedModules: true` to boost startup speed
  Since `transpile` API is used for `isolatedModules: true`, `createProgram` does not do anything with it. Therefore we can remove it
diff: @@ -10,9 +10,8 @@ import type { CompilerInstance, SourceOutput } from '../types'
  export const initializeTranspilerInstance = (configs: ConfigSet, logger: Logger): CompilerInstance => {
  logger.debug('initializeTranspilerInstance(): create typescript compiler')
  - const { options, fileNames } = configs.parsedTsConfig
  + const { options } = configs.parsedTsConfig
  const ts = configs.compilerModule
  - const program = ts.createProgram(fileNames, options)
  return {
  compileFn: (code: string, fileName: string): SourceOutput => {
  @@ -31,6 +30,6 @@ export const initializeTranspilerInstance = (configs: ConfigSet, logger: Logger)
  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  return [result.outputText, result.sourceMapText!]
  },
  - program,
  + program: undefined,
  }
  }
  