diff --git a/app/models/device.rb b/app/models/device.rb
index 79f1aa50..503997c0 100644
--- a/app/models/device.rb
+++ b/app/models/device.rb
@@ -203,18 +203,17 @@ def soft_state
     end
   end
 
-  def formatted_location
+  def formatted_location(slim = false)
     {
-      ip: nil,
       exposure: exposure,
-      elevation: elevation.try(:to_i) ,
+      elevation: slim ? nil : elevation.try(:to_i),
       latitude: latitude,
       longitude: longitude,
-      geohash: geohash,
+      geohash: slim ? nil : geohash,
       city: city,
-      country_code: country_code,
+      country_code: slim ? nil : country_code,
       country: country_name
-    }
+    }.compact
   end
 
   def formatted_data
diff --git a/app/views/v0/devices/_device.jbuilder b/app/views/v0/devices/_device.jbuilder
index e3158b31..ec9d72e4 100644
--- a/app/views/v0/devices/_device.jbuilder
+++ b/app/views/v0/devices/_device.jbuilder
@@ -1,9 +1,7 @@
 local_assigns[:with_owner] = true unless local_assigns.has_key?(:with_owner)
 local_assigns[:with_data] = true unless local_assigns.has_key?(:with_data)
-local_assigns[:with_postprocessing] = true unless local_assigns.has_key?(:with_postprocessing)
 local_assigns[:with_location] = true unless local_assigns.has_key?(:with_location)
 local_assigns[:slim_owner] = false unless local_assigns.has_key?(:slim_owner)
-local_assigns[:never_authorized] = false unless local_assigns.has_key?(:never_authorized)
 
 json.(
   device,
@@ -24,7 +22,7 @@ json.(
     low_battery: device.notify_low_battery
   })
 
-authorized = !local_assigns[:never_authorized] && (current_user && (current_user.is_admin? || (device.owner_id && current_user.id == device.owner_id)))
+authorized = (current_user && (current_user.is_admin? || (device.owner_id && current_user.id == device.owner_id)))
 
 if authorized
   json.merge! device_token: device.device_token
@@ -32,7 +30,7 @@ if authorized
 else
   json.merge! device_token: '[FILTERED]'
 end
-json.merge!(postprocessing: device.postprocessing) if local_assigns[:with_postprocessing]
+json.merge!(postprocessing: device.postprocessing)
 json.merge!(location: device.formatted_location) if local_assigns[:with_location]
 json.merge!(data_policy: device.data_policy(authorized))
 json.merge!(hardware: device.hardware(authorized))
diff --git a/app/views/v0/devices/_world_map_device.jbuilder b/app/views/v0/devices/_world_map_device.jbuilder
new file mode 100644
index 00000000..bd634745
--- /dev/null
+++ b/app/views/v0/devices/_world_map_device.jbuilder
@@ -0,0 +1,14 @@
+json.(
+  device,
+  :id,
+  :name,
+  :description,
+  :state,
+  :system_tags,
+  :user_tags,
+  :last_reading_at,
+)
+
+json.merge!(location: device.formatted_location(true))
+json.merge!(hardware: device.hardware(false))
+
diff --git a/app/views/v0/devices/_world_map_list.jbuilder b/app/views/v0/devices/_world_map_list.jbuilder
index d5e580bd..d2652dab 100644
--- a/app/views/v0/devices/_world_map_list.jbuilder
+++ b/app/views/v0/devices/_world_map_list.jbuilder
@@ -1 +1 @@
-json.array! Device.for_world_map(never_authorized ? nil : current_user), partial: 'device', as: :device, local_assigns: { with_data: false, with_postprocessing: false, slim_owner: true, never_authorized: never_authorized }
+json.array! Device.for_world_map(never_authorized ? nil : current_user), partial: 'world_map_device', as: :device
diff --git a/config/application.rb b/config/application.rb
index c23b78ca..caab0290 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -73,5 +73,6 @@ class Application < Rails::Application
 
     config.api_only = true
     config.active_storage.service_urls_expire_in = 30.minutes
+    config.middleware.use Rack::Deflater
   end
 end