The Site Studio team is working to improve memory consumption. In the meantime, Drupal Starter Kits try to increase memory limits temporarily through code. If you are still experiencing out-of-memory errors, you can run the following command to install Drupal Starter Kits using Drush, as Drush is more efficient with memory than the user interface:

php -d memory_limit=2G vendor/bin/drush site:install acquia_cms --yes --account-pass admin

When working with the Site Studio API, installing and importing from Drush is more performant than using the Drupal admin UI. If you’re running into memory errors, try using Drush where you can override the memory limit.