Enable read_concurrency for config ets table
diff --git a/src/config.erl b/src/config.erl
index 2156a7b..5c9ac6f 100644
--- a/src/config.erl
+++ b/src/config.erl
@@ -186,7 +186,7 @@
     gen_server:call(?MODULE, {listen_for_changes, CallbackModule, InitialState}).
 
 init(IniFiles) ->
-    ets:new(?MODULE, [named_table, set, protected]),
+    ets:new(?MODULE, [named_table, set, protected, {read_concurrency, true}]),
     lists:map(fun(IniFile) ->
         {ok, ParsedIniValues} = parse_ini_file(IniFile),
         ets:insert(?MODULE, ParsedIniValues)