Revert "perf: cap RAF-based callbacks to 60fps on high refresh rate displays"

This reverts commit 9f25e05d87.

src/components/nodes/FloatingNodeHeader.tsx

@@ -7,7 +7,6 @@ import { NodeType, ProviderType } from "@/types";
 import { useWorkflowStore } from "@/store/workflowStore";
 import { defaultNodeDimensions } from "@/store/utils/nodeDefaults";
 import { ProviderBadge } from "./ProviderBadge";
-import { createThrottledLoop } from "@/utils/throttledRAF";
 
 export interface CommentNavigationProps {
   currentIndex: number;
@@ -122,11 +121,15 @@ export const FloatingNodeHeader = memo(function FloatingNodeHeader({
 
     updatePosition();
 
-    const loop = createThrottledLoop(updatePosition);
-    loop.start();
+    let animationId: number;
+    const trackPosition = () => {
+      updatePosition();
+      animationId = requestAnimationFrame(trackPosition);
+    };
+    animationId = requestAnimationFrame(trackPosition);
 
     return () => {
-      loop.stop();
+      cancelAnimationFrame(animationId);
     };
   }, [showCommentTooltip, isCommentFocused]);
 

src/components/nodes/ModelParameters.tsx

@@ -5,7 +5,6 @@ import { ProviderType, ModelInputDef } from "@/types";
 import { ModelParameter } from "@/lib/providers/types";
 import { useProviderApiKeys } from "@/store/workflowStore";
 import { deduplicatedFetch } from "@/utils/deduplicatedFetch";
-import { createThrottledRAF } from "@/utils/throttledRAF";
 
 // localStorage cache for model schemas (persists across dev server restarts)
 const SCHEMA_CACHE_KEY = "node-banana-schema-cache";
@@ -197,16 +196,17 @@ function ModelParametersInner({
   useEffect(() => {
     const el = gridRef.current;
     if (!el || !useGrid) { setColCount(1); return; }
-    const throttle = createThrottledRAF();
+    let rafId: number;
     const observer = new ResizeObserver(() => {
-      throttle.schedule(() => {
+      cancelAnimationFrame(rafId);
+      rafId = requestAnimationFrame(() => {
         const cols = getComputedStyle(el).gridTemplateColumns.split(" ").length;
         setColCount(prev => prev === cols ? prev : cols);
       });
     });
     observer.observe(el);
     return () => {
-      throttle.cancel();
+      cancelAnimationFrame(rafId);
       observer.disconnect();
     };
   }, [useGrid]);

src/store/workflowStore.ts

@@ -62,7 +62,6 @@ import {
 import { getConnectedInputsPure, validateWorkflowPure } from "./utils/connectedInputs";
 import { evaluateRule } from "./utils/ruleEvaluation";
 import { computeDimmedNodes } from "./utils/dimmingUtils";
-import { createThrottledRAF } from "@/utils/throttledRAF";
 import {
   executeAnnotation,
   executeArray,
@@ -383,9 +382,9 @@ let nodeIdCounter = 0;
 let groupIdCounter = 0;
 let autoSaveIntervalId: ReturnType<typeof setInterval> | null = null;
 
-// Throttled RAF for hover updates — coalesces rapid mouseenter/mouseleave events
-// and caps at 60fps regardless of display refresh rate
-const hoverRAF = createThrottledRAF();
+// RAF debounce for hover updates — coalesces rapid mouseenter/mouseleave events
+// into a single store update per animation frame
+let hoverRafId: number | null = null;
 
 // Track pending save-generation syncs to ensure IDs are resolved before workflow save
 const pendingImageSyncs = new Map<string, Promise<void>>();
@@ -531,7 +530,9 @@ const workflowStoreImpl: StateCreator<WorkflowStore> = (set, get) => ({
   },
 
   setHoveredNodeId: (id: string | null) => {
-    hoverRAF.schedule(() => {
+    if (hoverRafId !== null) cancelAnimationFrame(hoverRafId);
+    hoverRafId = requestAnimationFrame(() => {
+      hoverRafId = null;
       if (get().hoveredNodeId !== id) set({ hoveredNodeId: id });
     });
   },

src/utils/throttledRAF.ts

@@ -1,75 +0,0 @@
-const FRAME_BUDGET = 1000 / 60; // ~16.67ms → 60fps cap
-
-/**
- * Creates a throttled requestAnimationFrame scheduler that limits
- * callback execution to ~60fps regardless of display refresh rate.
- *
- * On 144Hz displays, RAF fires every ~6.9ms. This utility coalesces
- * rapid schedule() calls and skips execution when less than one 60fps
- * frame budget has elapsed, so only the latest callback runs at most
- * once per ~16ms.
- *
- * For event-driven use (hover, ResizeObserver): the event source
- * keeps firing, so skipped frames naturally get picked up by the
- * next event.
- */
-export function createThrottledRAF() {
-  let rafId: number | null = null;
-  let lastTime: number | null = null;
-
-  function schedule(callback: () => void): void {
-    if (rafId !== null) cancelAnimationFrame(rafId);
-    rafId = requestAnimationFrame((now) => {
-      rafId = null;
-      if (lastTime !== null && now - lastTime < FRAME_BUDGET) return;
-      lastTime = now;
-      callback();
-    });
-  }
-
-  function cancel(): void {
-    if (rafId !== null) {
-      cancelAnimationFrame(rafId);
-      rafId = null;
-    }
-  }
-
-  return { schedule, cancel };
-}
-
-/**
- * Creates a continuous animation loop throttled to ~60fps.
- *
- * Unlike createThrottledRAF (which is event-driven and relies on
- * external events to re-trigger), this runs a self-scheduling loop
- * that executes the callback at most once per ~16ms frame budget.
- * The RAF loop itself runs at the display's native rate but skips
- * work on intermediate frames.
- */
-export function createThrottledLoop(callback: () => void) {
-  let rafId: number | null = null;
-  let lastTime = 0;
-
-  function tick(now: number) {
-    if (now - lastTime >= FRAME_BUDGET) {
-      lastTime = now;
-      callback();
-    }
-    rafId = requestAnimationFrame(tick);
-  }
-
-  function start(): void {
-    if (rafId !== null) return;
-    lastTime = 0; // Execute immediately on first frame
-    rafId = requestAnimationFrame(tick);
-  }
-
-  function stop(): void {
-    if (rafId !== null) {
-      cancelAnimationFrame(rafId);
-      rafId = null;
-    }
-  }
-
-  return { start, stop };
-}