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fix(landing): remove cursor lerp causing laggy tracking in collaboration section #4727

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Merged
waleedlatif1 merged 1 commit into from
May 22, 2026
+7 −31
Merged

fix(landing): remove cursor lerp causing laggy tracking in collaboration section #4727

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38 changes: 7 additions & 31 deletions apps/sim/app/(landing)/components/collaboration/collaboration.tsx
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
'use client'

import { useCallback, useEffect, useRef, useState } from 'react'
import { useCallback, useId, useRef, useState } from 'react'
import dynamic from 'next/dynamic'
import Image from 'next/image'
import Link from 'next/link'
Expand Down Expand Up @@ -171,8 +171,8 @@ function YouCursor({ x, y, visible }: YouCursorProps) {
* Collaboration section — team workflows and real-time collaboration.
*
* SEO:
* - `<section id="collaboration" aria-labelledby="collaboration-heading">`.
* - `<h2 id="collaboration-heading">` for the section title.
* - `<section id="collaboration">` is the stable anchor for in-page navigation.
* - The section title `<h2>` is linked via `aria-labelledby` using a `useId()`-generated id.
* - Product visuals use `<figure>` with `<figcaption>` and descriptive `alt` text.
*
* GEO:
Expand All @@ -181,41 +181,17 @@ function YouCursor({ x, y, visible }: YouCursorProps) {
* - Reference "Sim" by name per capability ("Sim's real-time collaboration").
*/

const CURSOR_LERP_FACTOR = 0.3

export default function Collaboration() {
const headingId = useId()
const [cursorPos, setCursorPos] = useState({ x: 0, y: 0 })
const [isHovering, setIsHovering] = useState(false)
const sectionRef = useRef<HTMLElement>(null)
const targetPos = useRef({ x: 0, y: 0 })
const animationRef = useRef<number>(0)

useEffect(() => {
const animate = () => {
setCursorPos((prev) => ({
x: prev.x + (targetPos.current.x - prev.x) * CURSOR_LERP_FACTOR,
y: prev.y + (targetPos.current.y - prev.y) * CURSOR_LERP_FACTOR,
}))
animationRef.current = requestAnimationFrame(animate)
}

if (isHovering) {
animationRef.current = requestAnimationFrame(animate)
}

return () => {
if (animationRef.current) {
cancelAnimationFrame(animationRef.current)
}
}
}, [isHovering])

const handleMouseMove = useCallback((e: React.MouseEvent) => {
targetPos.current = { x: e.clientX, y: e.clientY }
setCursorPos({ x: e.clientX, y: e.clientY })
}, [])

const handleMouseEnter = useCallback((e: React.MouseEvent) => {
targetPos.current = { x: e.clientX, y: e.clientY }
setCursorPos({ x: e.clientX, y: e.clientY })
setIsHovering(true)
}, [])
Expand All @@ -228,7 +204,7 @@ export default function Collaboration() {
<section
ref={sectionRef}
id='collaboration'
aria-labelledby='collaboration-heading'
aria-labelledby={headingId}
className='bg-[var(--landing-bg)]'
style={{ cursor: isHovering ? 'none' : 'auto' }}
onMouseMove={handleMouseMove}
Expand Down Expand Up @@ -258,7 +234,7 @@ export default function Collaboration() {
</Badge>

<h2
id='collaboration-heading'
id={headingId}
className='text-balance font-[430] font-season text-[32px] text-white leading-[100%] tracking-[-0.02em] sm:text-[36px] md:text-[40px]'
>
Realtime
Expand Down
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