diff --git a/docs/maps/meeting-rooms.md b/docs/maps/meeting-rooms.md
index be86bda0..4dbc0df2 100644
--- a/docs/maps/meeting-rooms.md
+++ b/docs/maps/meeting-rooms.md
@@ -18,6 +18,7 @@ You can have this object (i.e. your meeting area) to be selectable as the precis
 
 {.alert.alert-info}
 As an alternative, you may also put the `jitsiRoom` properties on a layer (rather than putting them on an "area" object)
+but we advise to stick with "area" objects for better performance!
 
 ## Triggering of the "Jitsi meet" action
 
diff --git a/docs/maps/opening-a-website.md b/docs/maps/opening-a-website.md
index 2318a7ab..52a68168 100644
--- a/docs/maps/opening-a-website.md
+++ b/docs/maps/opening-a-website.md
@@ -22,6 +22,7 @@ the [X-Frame-Options HTTP header](https://developer.mozilla.org/en-US/docs/Web/H
 
 {.alert.alert-info}
 As an alternative, you may also put the `openWebsite` properties on a layer (rather than putting them on an "area" object)
+but we advise to stick with "area" objects for better performance!
 
 ## Integrating a Youtube video
 
diff --git a/docs/maps/special-zones.md b/docs/maps/special-zones.md
index 73d1af72..1d22a3fc 100644
--- a/docs/maps/special-zones.md
+++ b/docs/maps/special-zones.md
@@ -15,6 +15,7 @@ In order to create a silent zone:
 
 {.alert.alert-info}
 As an alternative, you may also put the `silent` property on a layer (rather than putting them on an "area" object)
+but we advise to stick with "area" objects for better performance!
 
 ## Playing sounds or background music
 
@@ -33,3 +34,4 @@ In order to create a zone that triggers sounds/music:
 
 {.alert.alert-info}
 As an alternative, you may also put the `playAudio` properties on a layer (rather than putting them on an "area" object)
+but we advise to stick with "area" objects for better performance!