diff --git a/modules/performance/php-optimizer.sh b/modules/performance/php-optimizer.sh
index 42789e2..35dc71d 100755
--- a/modules/performance/php-optimizer.sh
+++ b/modules/performance/php-optimizer.sh
@@ -429,8 +429,106 @@ optimize_domain() {
 
     echo ""
     cecho "${CYAN}─────────────────────────────────────────────────────────────────────${NC}"
-    cecho "${YELLOW}${BOLD}WARNING:${NC} ${YELLOW}Automatic optimization not yet implemented${NC}"
-    cecho "${YELLOW}Please apply the above recommendations manually${NC}"
+    echo ""
+
+    # Ask if user wants to apply changes
+    read -p "Apply these recommendations? (y/n): " apply_choice
+
+    if [[ ! "$apply_choice" =~ ^[Yy]$ ]]; then
+        cecho "${YELLOW}Optimization cancelled - no changes made${NC}"
+        echo ""
+        read -p "Press Enter to continue..."
+        return
+    fi
+
+    # Create backup first
+    cecho "${CYAN}Creating backup before making changes...${NC}"
+    local backup_dir
+    backup_dir=$(backup_user_php_configs "$username" "$domain" 2>&1)
+
+    if [ $? -ne 0 ]; then
+        cecho "${RED}${BOLD}✗ Backup failed - aborting changes${NC}"
+        echo ""
+        read -p "Press Enter to continue..."
+        return
+    fi
+
+    cecho "${GREEN}✓ Backup created: $(basename "$backup_dir")${NC}"
+    echo ""
+
+    # Apply changes
+    cecho "${CYAN}Applying optimizations...${NC}"
+    echo ""
+
+    local changes_made=0
+    local changes_failed=0
+
+    # Find pool config
+    local pool_config
+    pool_config=$(find_fpm_pool_config "$username")
+
+    if [ -n "$pool_config" ] && [ -f "$pool_config" ]; then
+        # Apply max_children change if recommended
+        if [ -n "$recommended_max_children" ] && [ "$recommended_max_children" -ne "$current_max_children" ]; then
+            if modify_fpm_pool_setting "$pool_config" "pm.max_children" "$recommended_max_children" >/dev/null 2>&1; then
+                cecho "  ${GREEN}✓${NC} Set pm.max_children = $recommended_max_children"
+                changes_made=$((changes_made + 1))
+            else
+                cecho "  ${RED}✗${NC} Failed to set pm.max_children"
+                changes_failed=$((changes_failed + 1))
+            fi
+        fi
+    fi
+
+    echo ""
+    cecho "${CYAN}─────────────────────────────────────────────────────────────────────${NC}"
+
+    if [ "$changes_made" -gt 0 ]; then
+        cecho "${GREEN}${BOLD}✓ Applied $changes_made optimization(s)${NC}"
+
+        if [ "$changes_failed" -gt 0 ]; then
+            cecho "${YELLOW}⚠ Failed to apply $changes_failed optimization(s)${NC}"
+        fi
+
+        echo ""
+        cecho "${YELLOW}Changes have been applied. Restart PHP-FPM for changes to take effect.${NC}"
+        echo ""
+        read -p "Restart PHP-FPM now? (y/n): " restart_choice
+
+        if [[ "$restart_choice" =~ ^[Yy]$ ]]; then
+            # Detect PHP version
+            local php_version
+            php_version=$(detect_php_version_for_domain "$domain")
+
+            cecho "${CYAN}Restarting PHP-FPM ($php_version)...${NC}"
+
+            if reload_php_fpm "$php_version" >/dev/null 2>&1; then
+                cecho "${GREEN}✓ PHP-FPM reloaded successfully${NC}"
+
+                # Verify it's running
+                sleep 1
+                if verify_php_fpm_running "$php_version" >/dev/null 2>&1; then
+                    cecho "${GREEN}✓ PHP-FPM is running${NC}"
+                else
+                    cecho "${RED}✗ WARNING: PHP-FPM may not be running!${NC}"
+                    cecho "${YELLOW}Run: systemctl status ea-php${php_version#ea-php}-php-fpm${NC}"
+                fi
+            else
+                cecho "${RED}✗ Failed to restart PHP-FPM${NC}"
+                cecho "${YELLOW}You may need to restart manually:${NC}"
+                cecho "${YELLOW}systemctl restart ea-php${php_version#ea-php}-php-fpm${NC}"
+            fi
+        else
+            cecho "${YELLOW}Skipping restart - remember to restart PHP-FPM manually!${NC}"
+        fi
+
+        echo ""
+        cecho "${CYAN}Backup location: ${WHITE}$(basename "$backup_dir")${NC}"
+        cecho "${CYAN}To rollback: Use Option 'r' (Restore from Backup)${NC}"
+    else
+        cecho "${YELLOW}No changes were applied${NC}"
+    fi
+
     echo ""
     read -p "Press Enter to continue..."
 }