Update Data/Backends.fds

Data/Backends.fds

@@ -7,7 +7,7 @@
 		#If you used the installer, this should be 'dlbackend/comfy/ComfyUI/main.py'.
 		StartScript: dlbackend/ComfyUI/main.py
 		#Any arguments to include in the launch script.
-		ExtraArgs: --use-sage-attention --highvram
+		ExtraArgs: --use-ck-attention
 		#If unchecked, the system will automatically add some relevant arguments to the comfy launch. If checked, automatic args (other than port) won't be added.
 		DisableInternalArgs: false
 		#Whether the Comfy backend should automatically update itself during launch.