When asking for a repaint with a delay, subtract the frame time

crates/egui/src/context.rs

@@ -146,7 +146,7 @@ impl ContextImpl {
 
     fn request_repaint_after(
         &mut self,
-        delay: Duration,
+        mut delay: Duration,
         viewport_id: ViewportId,
         cause: RepaintCause,
     ) {
@@ -163,6 +163,11 @@ impl ContextImpl {
             // Hovering a tooltip is a good example of a case where we want to repaint after a delay.
         }
 
+        if let Ok(predicted_frame_time) = Duration::try_from_secs_f32(viewport.input.predicted_dt) {
+            // Make it less likely we over-shoot the target:
+            delay = delay.saturating_sub(predicted_frame_time);
+        }
+
         viewport.repaint.causes.push(cause);
 
         // We save some CPU time by only calling the callback if we need to.