diff --git a/templates/clamd_svc.erb b/templates/clamd_svc.erb
index 9eee048..1a43320 100644
--- a/templates/clamd_svc.erb
+++ b/templates/clamd_svc.erb
@@ -14,6 +14,9 @@ ExecStart = /usr/sbin/clamd -c /etc/clamd.d/%i.conf
 ExecReload=/bin/kill -USR2 $MAINPID
 Restart = on-failure
 TimeoutStartSec=420
+MemoryLimit=1024M
+CPUQuota=30%
+Nice=19
 
 [Install]
 WantedBy = multi-user.target