make user a raw_id field

api/admin.py

@@ -12,6 +12,7 @@ class APIKeyAdmin(APIKeyModelAdmin):
     list_display = [*APIKeyModelAdmin.list_display, "user"]
     list_filter = [*APIKeyModelAdmin.list_filter, "user"]
     search_fields = [*APIKeyModelAdmin.search_fields, "user__username", "user__email"]
+    raw_id_fields = ['user']
 
     def get_form(self, request, obj=None, **kwargs):
         form = super().get_form(request, obj, **kwargs)