diff --git a/Source/XenobladeX/b253dca415790207_0000000000000079_ps.txt b/Source/XenobladeX/b253dca415790207_0000000000000079_ps.txt
index 83f7d6b7..f4467041 100644
--- a/Source/XenobladeX/b253dca415790207_0000000000000079_ps.txt
+++ b/Source/XenobladeX/b253dca415790207_0000000000000079_ps.txt
@@ -2,9 +2,9 @@
 #version 420
 #extension GL_ARB_texture_gather : enable
 // shader b253dca415790207 
-// motion blur fix - static /2 factor as a compromise. fx gets lost in blend on higher scaling
-// To-do, review quarter scaling. 
-const float resScale = 2.0;
+// motion blur scaling
+ 
+const float resScale = <?=$scaleFactorX?>;
 //const float resScale = 3;
 uniform ivec4 uf_remappedPS[5];