diff --git a/internal/ui/ui_glfw.go b/internal/ui/ui_glfw.go
index 5a07dd6d8..64e27e66e 100644
--- a/internal/ui/ui_glfw.go
+++ b/internal/ui/ui_glfw.go
@@ -1199,13 +1199,6 @@ func (u *userInterfaceImpl) setFullscreen(fullscreen bool) {
 
 			v := m.GetVideoMode()
 			u.window.SetMonitor(m, 0, 0, v.Width, v.Height, v.RefreshRate)
-
-			// Swapping buffer is necessary to prevent the image lag (#1004).
-			// TODO: This might not work when vsync is disabled.
-			if u.graphicsDriver.IsGL() {
-				glfw.PollEvents()
-				u.swapBuffers()
-			}
 		}
 		u.adjustViewSizeAfterFullscreen()
 		return
@@ -1224,10 +1217,6 @@ func (u *userInterfaceImpl) setFullscreen(fullscreen bool) {
 		// Adjust the window size later (after adjusting the position).
 	} else if !u.isNativeFullscreenAvailable() && u.window.GetMonitor() != nil {
 		u.window.SetMonitor(nil, 0, 0, ww, wh, 0)
-		if u.graphicsDriver.IsGL() {
-			glfw.PollEvents()
-			u.swapBuffers()
-		}
 	}
 
 	// glfw.PollEvents is necessary for macOS to enable (*glfw.Window).SetPos and SetSize (#2296).