diff --git a/modules/performance/php-optimizer.sh b/modules/performance/php-optimizer.sh
index 5d9b4f8..0b99741 100755
--- a/modules/performance/php-optimizer.sh
+++ b/modules/performance/php-optimizer.sh
@@ -1333,6 +1333,10 @@ get_memory_limit_recommendation() {
             [ "$recommended" -lt 64 ] && recommended=64
             echo "${recommended}M"
             return 0
+        else
+            # No memory data detected - use safe default
+            echo "128M"
+            return 0
         fi
     fi
 
@@ -1360,11 +1364,21 @@ get_max_children_recommendation() {
             [ "$recommended" -lt 5 ] && recommended=5
             echo "$recommended"
             return 0
+        else
+            # No traffic detected - use safe minimum
+            echo "5"
+            return 0
         fi
     fi
 
-    # Fallback to old method
-    calculate_optimal_max_requests "50"
+    # Fallback to old method if no profile exists
+    local traffic_rpm
+    traffic_rpm=$(get_domain_peak_concurrent "$domain" 2>/dev/null || echo "0")
+    [ "$traffic_rpm" = "?" ] && traffic_rpm="0"
+    local recommended=$((traffic_rpm > 5 ? traffic_rpm + 10 : 5))
+    [ "$recommended" -gt 100 ] && recommended=100
+    [ "$recommended" -lt 5 ] && recommended=5
+    echo "$recommended"
 }
 
 # Get recommendation for max_requests using memory leak analysis