diff --git a/packages/frontend/assets/world/envs/lobby/shaders/bg/config.json b/packages/frontend/assets/world/envs/lobby/shaders/bg/config.json
index ff95a73978..ea0bf2db59 100644
--- a/packages/frontend/assets/world/envs/lobby/shaders/bg/config.json
+++ b/packages/frontend/assets/world/envs/lobby/shaders/bg/config.json
@@ -1,5 +1,6 @@
 {
 	"animate": true,
+	"_comment_": "パフォーマンスのためrefreshrateはもっと高い値にしたいがbabylonのバグか知らないけどおそらくSRと併用していることが原因でエラーになる",
 	"refreshrate": 1,
 	"uniforms": [
 	],