set max request delay to 500ms, https://github.com/microsoft/vscode/issues/128159

src/vs/editor/contrib/inlayHints/inlayHintsController.ts

@@ -81,7 +81,7 @@ export class InlayHintsController implements IEditorContribution {
 
 	private readonly _disposables = new DisposableStore();
 	private readonly _sessionDisposables = new DisposableStore();
-	private readonly _getInlayHintsDelays = new LanguageFeatureRequestDelays(InlayHintsProviderRegistry, 25, 2500);
+	private readonly _getInlayHintsDelays = new LanguageFeatureRequestDelays(InlayHintsProviderRegistry, 25, 500);
 
 	private readonly _cache = new InlayHintsCache();