The function shown below puzzles me for two reasons:

• the function execution terminates before all output is given
• the function execution takes more than 3 minutes; a very long time (so long, that it might not be because of the "cold starts" issue only).

When searching for bestpractices I found a hint, that background acitivities are slowed down after function execution is terminated (https://cloud.google.com/functions/docs/bestpractices/tips#do_not_start_background_activities).

How can I create a function, that terminates after all output is created and avoids background activity?
Is there any way how to speed up the get() processing?

screenshot of firebase functions dashboard

screensthot of firestore showing the document created to trigger the function

Please have a look on the code:

// The Cloud Functions for Firebase SDK to create Cloud Functions .
const functions = require("firebase-functions");
// The Firebase Admin SDK to access Firestore.
const admin = require("firebase-admin");
admin.initializeApp();

const db = admin.firestore();

exports.evaluateScore = functions
.region('europe-west1')
.firestore   
  .document('organizations/{orgId}/persons/{personId}')  
  .onWrite(async (snap, context) => {

const newDocument = snap.after.exists ? snap.after.data() : null; 
const oldDocument = snap.before.exists ? snap.before.data() : null;    
console.log(`lastName: '${newDocument.personLastName}'; id: '${snap.after.id}'`);


// if only newDocument exists
if (newDocument != null && oldDocument == null ) {
  
  const arrayNameSplit = snap.after.ref.path.split('/'); 
  var orgId = arrayNameSplit[arrayNameSplit.length -3];    

  
  var listOfProfiles = newDocument.listOfProfiles;
  console.log(`listOfProfiles: `, JSON.stringify(listOfProfiles));
      
  for (let i = 0; i < listOfProfiles.length; i++) {
    db.collection('organizations').doc(orgId).collection('profiles').doc(listOfProfiles[i]).get()
    .then(docRef => {
      const profile = docRef.data();
      console.log(i, ' profileTitle:', JSON.stringify(profile.profileTitle))
    }).catch(e => {
      console.error('something went wrong', e)
    });
  }    
}
  });