xrender seems to work properly now

Had issues with xrender on my R9 270X in the past, thus I used glx, though it introduced some slight delays. Seems to work fine now so I'll try switching to xrender

display/compositor/compton.conf

@@ -1,10 +1,10 @@
 # Symlink as ~/.config/compton.conf
 
-backend = "glx";
+backend = "xrender";
 paint-on-overlay = true;
 glx-no-stencil = true;
 glx-no-rebind-pixmap = true;
-vsync = "opengl-swc"; 
+vsync = "opengl"; 
 
 # These are important. The first one enables the opengl backend. The last one is the vsync method. Depending on the driver you might need to use a different method.
 # The other options are smaller performance tweaks that work well in most cases.