diff --git a/src/drawglx.c b/src/drawglx.c
index 7937867..ae91779 100644
--- a/src/drawglx.c
+++ b/src/drawglx.c
@@ -186,6 +186,8 @@ int xoverlay_glx_create_window()
     }
     glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
     glClear(GL_COLOR_BUFFER_BIT);
+    PFNGLXSWAPINTERVALEXTPROC glXSwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalEXT");
+    glXSwapIntervalEXT(xoverlay_library.display, xoverlay_library.window, 0);
     glXSwapBuffers(xoverlay_library.display, xoverlay_library.window);
 
     log_write("Initializing DS\n");
diff --git a/src/drawglx_internal.c b/src/drawglx_internal.c
index 3c8a029..2e67d6b 100644
--- a/src/drawglx_internal.c
+++ b/src/drawglx_internal.c
@@ -76,7 +76,7 @@ ds_post_render()
     program_reset();
     glPopClientAttrib();
     glPopAttrib();
-    glFlush();
+//    glFlush();
     glXSwapBuffers(xoverlay_library.display, xoverlay_library.window);
     glXMakeContextCurrent(xoverlay_library.display, None, None, None);
 }