Why is a simple query taking more than 2 seconds with Golang Mongo driver?

I am coding a golang web service that has a mongo database, I am using the go.mongodb.org/mongo-driver v1.11.6 and a simple query is taking more than 2 seconds to complete. The database has only a few records, is it just for testing, no more than 10 records.

I've been looking for the code part where the time is being wasted and I found that the problem is with the mongo package. The methods Find, FindOne and even Insert and Update are taking more than 1 or 2 seconds to complete.

This is the mongo client instantiation

func NewMongoDB() *MongoDB {
    uri := config.GetEnvConfig().MongoURI
    database := config.GetEnvConfig().MongoDatabase

    client, err := mongo.Connect(context.TODO(), options.Client().ApplyURI(uri))

    if err != nil {
    panic(err)
    }

    return &MongoDB{
    client:   client,
    database: database,
    }
}

This is the function code:

func getMessageByIdFromDB(id string) (*Message, error) {
    conn := database.NewMongoDB()
    defer conn.Disconnect()

    filter := map[string]string{
    "message_id": id,
    }

    var message Message

    start := time.Now()

    err := conn.GetCollection(collectionName).FindOne(context.TODO(), filter).Decode(&message)

    elapsed := time.Since(start)
    log.Printf("Querying messages took %s", elapsed)

    if err != nil {
    return nil, err
    }

    return &message, nil
}

This is the result of the time tracking of the function:

Querying messages took 2.320409472s

It is not about internet connection because I made the query test with python and the request took only 0.003 seconds

I tried to change the version of the package without achieving it. Also I tried to reinstall all the packages of the project, with the same result.

I also tried to create search indexes in database with no different results. The query also take more than 2 seconds to complete.

I think the query shouldn't take more than a few milliseconds to complete.