diff --git a/docker/clam/docker-entrypoint.sh b/docker/clam/docker-entrypoint.sh
index 3408b04..f6cc72f 100644
--- a/docker/clam/docker-entrypoint.sh
+++ b/docker/clam/docker-entrypoint.sh
@@ -4,7 +4,15 @@ MODE=${1:-"scan"}
 
 scan() {
     echo "Running ClamAV scan..."
-    clamscan -r /scan --log=/var/log/clamav/clamav.log
+    SCAN_PRIORITY=${SCAN_PRIORITY:-low}
+
+    if [ "$SCAN_PRIORITY" = "low" ]; then
+        echo "Running scan in low priority mode."
+        nice -n 19 clamscan -r /scan --log=/var/log/clamav/clamav.log
+    else
+        echo "Running scan in full power mode."
+        clamscan -r /scan --log=/var/log/clamav/clamav.log
+    fi
 }
 
 report() {