diff --git a/modules/performance/php-optimizer.sh b/modules/performance/php-optimizer.sh
index 247f4a5..13cd099 100755
--- a/modules/performance/php-optimizer.sh
+++ b/modules/performance/php-optimizer.sh
@@ -2494,6 +2494,18 @@ optimize_level_5_everything() {
     local users
     users=$(list_all_users)
 
+    # CRITICAL FIX: Build list of ALL domains on server FIRST
+    # This is needed for accurate traffic percentage calculation (same as batch analyzer)
+    all_domains_string=""
+    while IFS= read -r u; do
+        [ -z "$u" ] && continue
+        u_domains=$(get_user_domains "$u")
+        while IFS= read -r d; do
+            [ -z "$d" ] && continue
+            all_domains_string="$all_domains_string$d"$'\n'
+        done <<< "$u_domains"
+    done <<< "$users"
+
     while IFS= read -r username; do
         [ -z "$username" ] && continue
         local user_domains
@@ -2527,7 +2539,8 @@ optimize_level_5_everything() {
                 recommended_requests=$(get_max_requests_recommendation "$domain")
             else
                 # Use intelligent three-constraint model
-                traffic_pct=$(get_domain_traffic_percentage "$username" "$domain" "$user_domains" 2>/dev/null | cut -d'|' -f1)
+                # CRITICAL FIX: Pass ALL server domains, not just user's domains!
+                traffic_pct=$(get_domain_traffic_percentage "$username" "$domain" "$all_domains_string" 2>/dev/null | cut -d'|' -f1)
                 traffic_pct=${traffic_pct:-50}
 
                 # Call intelligent three-constraint function