diff --git a/Performance-Tips.md b/Performance-Tips.md
index c23b223..4d51602 100644
--- a/Performance-Tips.md
+++ b/Performance-Tips.md
@@ -7,7 +7,7 @@ One drawing function like `DrawImage` or `Fill` is usually treated as one (inter
 * All the functions are `DrawImage`
 * All the render targets are same (`A` in `A.DrawImage(B, op)`)
 * All the render sources are same (`B` in `A.DrawImage(B, op)`)
-  * This is not a strong request since in most cases different images can share a same inner OpenGL texture. This is not 100%, so using the same render source is safer.
+  * This is not a strong request since different images might share a same inner OpenGL texture in high possibility. This is not 100%, so using the same render source is safer.
 * All the color matrices are same
 * All the composite modes are same
 * All the filter values are same