diff --git a/marietje/marietje/settings.py b/marietje/marietje/settings.py
index a2b8b5d..f365330 100644
--- a/marietje/marietje/settings.py
+++ b/marietje/marietje/settings.py
@@ -112,12 +112,12 @@ LOGOUT_REDIRECT_URL = '/'
 
 BERTHA_HOST = ('bach.science.ru.nl', 1234)
 MAIL_FROM = 'marietje@marietje.science.ru.nl'
-MAX_MINUTES_IN_A_ROW = 20
+MAX_MINUTES_IN_A_ROW = 45
 
 # Time range (dependent on timezone specified) when MAX_MINUTES_IN_A_ROW is in effect.
 LIMIT_HOURS = (12, 13)
 LIMIT_MINUTES = (15, 45)
-LIMIT_ALWAYS = 45
+LIMIT_ALWAYS = True
 
 CONTACT_EMAIL = 'marietje@science.ru.nl'
 
diff --git a/marietje/queues/migrations/0006_state_db_index.py b/marietje/queues/migrations/0006_state_db_index.py
new file mode 100644
index 0000000..c14dfec
--- /dev/null
+++ b/marietje/queues/migrations/0006_state_db_index.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.0.4 on 2018-04-09 15:44
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('queues', '0005_playlistsong_played_at'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='playlistsong',
+            name='state',
+            field=models.IntegerField(db_index=True, default=0),
+        ),
+    ]
diff --git a/marietje/queues/models.py b/marietje/queues/models.py
index 8944dfa..9f8c5db 100644
--- a/marietje/queues/models.py
+++ b/marietje/queues/models.py
@@ -35,7 +35,7 @@ class PlaylistSong(models.Model):
     # 1: Playing.
     # 2: Played.
     # 3: Cancelled.
-    state = models.IntegerField(default=0)
+    state = models.IntegerField(default=0, db_index=True)
 
     def move_up(self):
         other_song = PlaylistSong.objects.filter(playlist=self.playlist, id__lt=self.id)\
@@ -112,13 +112,7 @@ class Queue(models.Model):
 
     def request(self, song, user):
         playlist_songs = PlaylistSong.objects.filter(playlist=self.playlist, state=0).order_by('id')
-
-        seconds_in_a_row = 0
-        for playlist_song in playlist_songs:
-            if playlist_song.user != user:
-                seconds_in_a_row = 0
-            else:
-                seconds_in_a_row += playlist_song.song.duration
+        seconds_in_a_row = sum(ps.song.duration for ps in playlist_songs if ps.user == user)
 
         now = timezone.now()
         if not user.is_superuser: