In the package.json, I updated the devDependencies @angular-builders/jest": "^17.0.0" to "@angular-builders/jest": "^18.0.0" and "jest-preset-angular": "^13.1.1" to "jest-preset-angular": "^14.5.1"

I'm working with "@angular/core": "^18.0.0"` `"jest": "^29.7.0",

In the jest.config.test, I updated

`globals: {
    "ts-jest": {
      isolatedModules: true,
 }`

to

`transform: {
    '/\.[jt]sx?$/': ["ts-jest", {isolatedModules: true,}],
  }`

(had transformIgnorePatterns on both to skip node_modules)

ran npm install after update

Individal test run times did not increase

But overall (running npm test) the jest test run time went from 296.773s to 689.213s

Expecting similar performance after update.