changes to tag sub processing

app/models/tag_subscription.rb

@@ -131,6 +131,7 @@ class TagSubscription < ActiveRecord::Base
         begin
           tag_subscription.process
           tag_subscription.save
+          sleep 0
         rescue Exception => x
           raise if Rails.env != "production"
         end

config/schedule.rb

@@ -1,6 +1,6 @@
 set :output, "/var/log/whenever.log"
 
-every 1.hour do
+every 4.hours do
   runner "TagSubscription.process_all"
 end