Concurrent large delete operations hang in NodeJS

I have a workspace cleanup function in my NodeJS application running on a Centos 7.2 server, that takes a list of directory paths and deletes them. When the function receives a list of paths, it uses Promise.all() to perform these deletes concurrently in the following manner:

/**
 * Deletes directories.
 *
 * @param   {Array} directories Array of directories to be deleted.
 *
 * @returns {Object} Response object with the status code and data.
 */
const cleanup = async (directories) => {
  if (!Array.isArray(directories)) {
    return await responseStatementHandler(
      400,
      `Provide a list of directories as an array - [dir1, dir2].`,
      null,
      console.error
    );
  }

  if (!directories.length > 0) {
    return await responseStatementHandler(
      400,
      `Directory list cannot be empty.`,
      null,
      console.error
    );
  }

  try {
    const promisesList = await Promise.all(
      directories.map((d) => deleteDirectory(d))
    );
    return await responseStatementHandler(
      207,
      await promisesList,
      null,
      console.log
    );
  } catch (err) {
    return await responseStatementHandler(
      500,
      `Directory cleanup failed.`,
      err,
      console.error
    );
  }
};

/**
 * Performs a force delete on a provided directory.
 *
 * @param   {String} directory  Path of the directory to be deleted.
 *
 * @returns {Object} Response object with the status code and data.
 */
const deleteDirectory = async (directory) => {
  console.log(`Deleting directory: ${directory}`);
  try {
    if ((await fs.stat(directory)).isDirectory()) {
      await fs.rm(directory, { recursive: true, force: true });
      return await generateIndividualResponseObj(
        directory,
        200,
        `Successfully deleted directory: ${directory}`,
        null,
        console.log
      );
    }
  } catch (err) {
    if (err.message.includes("no such file or directory")) {
      return await generateIndividualResponseObj(
        directory,
        404,
        `Could not find directory: ${directory}`,
        null,
        console.error
      );
    }
    return await generateIndividualResponseObj(
      directory,
      500,
      `Failed to delete directory: ${directory}`,
      err,
      console.error
    );
  }
};

The issue here is that the directories are large; ~1G in size. So when there are multiple such deletes (>10 so >10G), the operation just hangs.

The reason I know this is because as soon as I manually delete the directories, the application runs fine without issues.

Is this a limitation with the fs module or the way in which the logic is written? Would a timeout for the delete operations be helpful in this scenario? If so, how would I achieve such a timeout with the fs module?