diff --git a/src/imgs/cyclefold-nova-diagram.png b/src/imgs/cyclefold-nova-diagram.png
index 00b8971..d7f85b8 100644
Binary files a/src/imgs/cyclefold-nova-diagram.png and b/src/imgs/cyclefold-nova-diagram.png differ
diff --git a/src/usage/frontend-circom.md b/src/usage/frontend-circom.md
index fc7cbef..9a30f79 100644
--- a/src/usage/frontend-circom.md
+++ b/src/usage/frontend-circom.md
@@ -1,6 +1,8 @@
 # Circom frontend
- > Experimental frontend using [arkworks/circom-compat](https://github.com/arkworks-rs/circom-compat).
+ > **Note**: Circom frontend will be significantly slower than the Arkworks frontend.
  
+Experimental frontend using [arkworks/circom-compat](https://github.com/arkworks-rs/circom-compat).
+
 We can define the circuit to be folded in Circom. The only interface that we need to fit in is:
 
 ```c