FIX: should not use sw-opti option (deprecated and makes everything slow

with vsync).

picom/picom.conf

@@ -9,7 +9,7 @@
 
 # Backend to use: "xrender" or "glx".
 # GLX backend is typically much faster but depends on a sane driver.
-backend = "xrender";
+backend = "glx";
 
 #################################
 #
@@ -185,7 +185,7 @@ detect-client-opacity = true;
 refresh-rate = 0;
 
 # Vertical synchronization: match the refresh rate of the monitor
-vsync = false;
+vsync = true;
 
 # Enable DBE painting mode, intended to use with VSync to (hopefully) eliminate tearing.
 # Reported to have no effect, though.
@@ -194,7 +194,7 @@ dbe = false;
 # Limit picom to repaint at most once every 1 / refresh_rate second to boost performance.
 # This should not be used with --vsync drm/opengl/opengl-oml as they essentially does --sw-opti's job already,
 # unless you wish to specify a lower refresh rate than the actual value.
-sw-opti = true;
+sw-opti = false;
 
 # Unredirect all windows if a full-screen opaque window is detected, to maximize performance for full-screen windows, like games.
 # Known to cause flickering when redirecting/unredirecting windows.