diff --git a/config/runtime.exs b/config/runtime.exs
index c264e8e3..354250f1 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -129,6 +129,8 @@ config :wanderer_app,
   admin_username: System.get_env("WANDERER_ADMIN_USERNAME", "admin"),
   admin_password: System.get_env("WANDERER_ADMIN_PASSWORD"),
   admins: admins,
+  base_metrics_only:
+    System.get_env("WANDERER_BASE_METRICS_ONLY", "false") |> String.to_existing_atom(),
   corp_id: System.get_env("WANDERER_CORP_ID", "-1") |> String.to_integer(),
   corp_wallet: System.get_env("WANDERER_CORP_WALLET", ""),
   corp_wallet_eve_id: System.get_env("WANDERER_CORP_WALLET_EVE_ID", "-1"),
diff --git a/lib/wanderer_app/character.ex b/lib/wanderer_app/character.ex
index fa51c713..cfd416e1 100644
--- a/lib/wanderer_app/character.ex
+++ b/lib/wanderer_app/character.ex
@@ -263,7 +263,7 @@ defmodule WandererApp.Character do
     end
   end
 
-  defp maybe_merge_map_character_settings(%{id: character_id} = character, map_id, true) do
+  defp maybe_merge_map_character_settings(%{id: character_id} = character, _map_id, true) do
     {:ok, tracking_paused} =
       WandererApp.Cache.lookup("character:#{character_id}:tracking_paused", false)
 
diff --git a/lib/wanderer_app/env.ex b/lib/wanderer_app/env.ex
index 168828f6..b2b397a1 100644
--- a/lib/wanderer_app/env.ex
+++ b/lib/wanderer_app/env.ex
@@ -11,49 +11,50 @@ defmodule WandererApp.Env do
   def vsn(), do: Application.spec(@app)[:vsn]
 
   def git_sha(), do: get_key(:git_sha, "<GIT_SHA>")
-  def base_url, do: get_key(:web_app_url, "<BASE_URL>")
-  def custom_route_base_url, do: get_key(:custom_route_base_url, "<CUSTOM_ROUTE_BASE_URL>")
-  def invites, do: get_key(:invites, false)
+  def base_url(), do: get_key(:web_app_url, "<BASE_URL>")
+  def base_metrics_only(), do: get_key(:base_metrics_only, false)
+  def custom_route_base_url(), do: get_key(:custom_route_base_url, "<CUSTOM_ROUTE_BASE_URL>")
+  def invites(), do: get_key(:invites, false)
 
-  def map_subscriptions_enabled?, do: get_key(:map_subscriptions_enabled, false)
-  def websocket_events_enabled?, do: get_key(:websocket_events_enabled, false)
-  def public_api_disabled?, do: get_key(:public_api_disabled, false)
+  def map_subscriptions_enabled?(), do: get_key(:map_subscriptions_enabled, false)
+  def websocket_events_enabled?(), do: get_key(:websocket_events_enabled, false)
+  def public_api_disabled?(), do: get_key(:public_api_disabled, false)
 
   @decorate cacheable(
               cache: WandererApp.Cache,
               key: "active_tracking_pool"
             )
-  def active_tracking_pool, do: get_key(:active_tracking_pool, "default")
+  def active_tracking_pool(), do: get_key(:active_tracking_pool, "default")
 
   @decorate cacheable(
               cache: WandererApp.Cache,
               key: "tracking_pool_max_size"
             )
-  def tracking_pool_max_size, do: get_key(:tracking_pool_max_size, 300)
-  def character_tracking_pause_disabled?, do: get_key(:character_tracking_pause_disabled, true)
-  def character_api_disabled?, do: get_key(:character_api_disabled, false)
-  def wanderer_kills_service_enabled?, do: get_key(:wanderer_kills_service_enabled, false)
-  def wallet_tracking_enabled?, do: get_key(:wallet_tracking_enabled, false)
-  def admins, do: get_key(:admins, [])
-  def admin_username, do: get_key(:admin_username)
-  def admin_password, do: get_key(:admin_password)
-  def corp_wallet, do: get_key(:corp_wallet, "")
-  def corp_wallet_eve_id, do: get_key(:corp_wallet_eve_id, "-1")
-  def corp_eve_id, do: get_key(:corp_id, -1)
-  def subscription_settings, do: get_key(:subscription_settings)
+  def tracking_pool_max_size(), do: get_key(:tracking_pool_max_size, 300)
+  def character_tracking_pause_disabled?(), do: get_key(:character_tracking_pause_disabled, true)
+  def character_api_disabled?(), do: get_key(:character_api_disabled, false)
+  def wanderer_kills_service_enabled?(), do: get_key(:wanderer_kills_service_enabled, false)
+  def wallet_tracking_enabled?(), do: get_key(:wallet_tracking_enabled, false)
+  def admins(), do: get_key(:admins, [])
+  def admin_username(), do: get_key(:admin_username)
+  def admin_password(), do: get_key(:admin_password)
+  def corp_wallet(), do: get_key(:corp_wallet, "")
+  def corp_wallet_eve_id(), do: get_key(:corp_wallet_eve_id, "-1")
+  def corp_eve_id(), do: get_key(:corp_id, -1)
+  def subscription_settings(), do: get_key(:subscription_settings)
 
   @decorate cacheable(
               cache: WandererApp.Cache,
               key: "restrict_maps_creation"
             )
-  def restrict_maps_creation?, do: get_key(:restrict_maps_creation, false)
+  def restrict_maps_creation?(), do: get_key(:restrict_maps_creation, false)
 
-  def sse_enabled? do
+  def sse_enabled?() do
     Application.get_env(@app, :sse, [])
     |> Keyword.get(:enabled, false)
   end
 
-  def webhooks_enabled? do
+  def webhooks_enabled?() do
     Application.get_env(@app, :external_events, [])
     |> Keyword.get(:webhooks_enabled, false)
   end
@@ -62,19 +63,19 @@ defmodule WandererApp.Env do
               cache: WandererApp.Cache,
               key: "map-connection-auto-expire-hours"
             )
-  def map_connection_auto_expire_hours, do: get_key(:map_connection_auto_expire_hours)
+  def map_connection_auto_expire_hours(), do: get_key(:map_connection_auto_expire_hours)
 
   @decorate cacheable(
               cache: WandererApp.Cache,
               key: "map-connection-auto-eol-hours"
             )
-  def map_connection_auto_eol_hours, do: get_key(:map_connection_auto_eol_hours)
+  def map_connection_auto_eol_hours(), do: get_key(:map_connection_auto_eol_hours)
 
   @decorate cacheable(
               cache: WandererApp.Cache,
               key: "map-connection-eol-expire-timeout-mins"
             )
-  def map_connection_eol_expire_timeout_mins,
+  def map_connection_eol_expire_timeout_mins(),
     do: get_key(:map_connection_eol_expire_timeout_mins)
 
   def get_key(key, default \\ nil), do: Application.get_env(@app, key, default)
@@ -83,7 +84,7 @@ defmodule WandererApp.Env do
   A single map containing environment variables
   made available to react
   """
-  def to_client_env do
+  def to_client_env() do
     %{detailedKillsDisabled: not wanderer_kills_service_enabled?()}
   end
 end
diff --git a/lib/wanderer_app/metrics/prom_ex_plugin.ex b/lib/wanderer_app/metrics/prom_ex_plugin.ex
index 7baf0e51..065c0995 100644
--- a/lib/wanderer_app/metrics/prom_ex_plugin.ex
+++ b/lib/wanderer_app/metrics/prom_ex_plugin.ex
@@ -29,15 +29,24 @@ defmodule WandererApp.Metrics.PromExPlugin do
 
   @impl true
   def event_metrics(_opts) do
-    [
+    base_metrics = [
       user_event_metrics(),
-      character_event_metrics(),
       map_event_metrics(),
-      map_subscription_metrics(),
+      map_subscription_metrics()
+    ]
+
+    advanced_metrics = [
+      character_event_metrics(),
       characters_distribution_event_metrics(),
       esi_event_metrics(),
       json_api_metrics()
     ]
+
+    if WandererApp.Env.base_metrics_only() do
+      base_metrics
+    else
+      base_metrics ++ advanced_metrics
+    end
   end
 
   defp user_event_metrics do
@@ -227,8 +236,8 @@ defmodule WandererApp.Metrics.PromExPlugin do
   defp get_esi_error_tag_values(metadata) do
     %{
       endpoint: Map.get(metadata, :endpoint, "unknown"),
-      error_type: to_string(Map.get(metadata, :error_type, "unknown")),
-      tracking_pool: Map.get(metadata, :tracking_pool, "unknown")
+      error_type: inspect(Map.get(metadata, :error_type, "unknown")),
+      tracking_pool: Map.get(metadata, :tracking_pool, "default")
     }
   end