When you open a Notion page, the cover image at the top may cause a noticeable delay before any content appears on screen. This is called a delayed First Paint, and it occurs because the browser must download and decode the cover image before it can render the page. Notion loads the cover image synchronously during page load, blocking other page elements from painting until the image is ready. This article explains the technical reason behind this delay and provides steps to reduce or eliminate the problem.
Key Takeaways: Fixing Notion Page Cover Image Loading Delays
- Use smaller cover images (under 500 KB): Reduces download time and speeds up the First Paint.
- Disable cover images on dashboard pages: Remove the image entirely to let the page render instantly.
- Enable Notion’s built-in lazy loading for images: Ensures cover images load after the initial page content appears.
Why a Cover Image Blocks the First Paint in Notion
Notion renders each page as a single document. When the browser receives the page HTML, it sees a <div> with a background image URL for the cover. The browser must fetch that image, decode it, and then paint the element. During this time, the browser cannot display any other page content below the cover. This is a synchronous blocking behavior: the browser waits for the image before continuing to paint the rest of the page.
The size of the cover image directly affects the delay. A 2 MB image will take several seconds to download on a slow connection. Even on fast connections, the decode time for large images can add 200–500 ms. Notion does not automatically compress or lazy-load cover images. The image is always fetched at its original resolution, which can be much larger than what the viewport needs.
Another factor is the image format. Notion accepts JPEG, PNG, GIF, and WebP. Unoptimized PNG files are often much larger than JPEG or WebP versions of the same scene. If you upload a screenshot saved as a PNG, it may be 3–5 times larger than a JPEG equivalent. This increases both download and decode time.
Finally, the browser’s caching behavior matters. The first visit to a page always requires a full download. Subsequent visits may use cached images, eliminating the delay. But users who rarely revisit a page will experience the slow First Paint every time.
Steps to Reduce Cover Image Loading Delay
You cannot change how Notion loads images on its servers. But you can control the images you upload. The following steps will minimize the delay caused by cover images.
- Compress the cover image before uploading
Use an image editor or an online tool like TinyPNG or Squoosh to reduce file size. Aim for under 500 KB. For a typical 1500×500 pixel cover, a JPEG at 80% quality usually lands between 200 and 400 KB. WebP format can cut size by another 30% without visible quality loss. - Resize the image to the display dimensions
Notion displays cover images at a maximum width of 1500 pixels on desktop. Resize your image to 1500 pixels wide before uploading. Uploading a 4000-pixel image forces the browser to download and decode unnecessary data. - Remove the cover image on pages where it is not essential
Hover over the cover area and click the three-dot menu. Select Remove cover. The page will then render the title and content immediately. This is the most effective fix for dashboard and index pages. - Use a solid color cover instead of an image
Click Change cover and select the Colors tab. Pick a color from the palette. A solid color adds zero loading delay because it is generated by CSS, not an image file. - Enable lazy loading in Notion (if available)
Notion introduced a lazy loading toggle for images in early 2025. Go to Settings & Members > Settings > Appearance and turn on Lazy load cover images. This makes cover images load after the page content, so the First Paint happens immediately. If you do not see this option, your workspace may not have the update yet.
If Notion Still Has a Slow First Paint After Optimizing Covers
Page has multiple large images in the body
Even after fixing the cover, inline images in the page body can delay rendering. Each image blocks the paint until it loads. Compress all images in the page using the same method described above. Alternatively, convert large images to links instead of embedding them directly.
Browser extension interferes with Notion rendering
Extensions that block scripts or modify page content can cause Notion to wait for additional resources. Disable all extensions temporarily. If the page loads faster, re-enable extensions one by one to find the culprit. Common offenders are ad blockers and privacy-focused extensions that block image CDNs.
Network conditions are slow
A slow internet connection amplifies any image loading delay. If you are on a weak Wi-Fi or cellular network, the cover image will take longer to download. Consider using a solid color cover or removing the cover entirely when working remotely.
Notion desktop app uses the same blocking behavior
The Notion desktop app for Windows is built on Electron, which behaves similarly to a browser. The same image loading delay applies. Optimize cover images in the same way regardless of whether you use the web app or the desktop app.
Notion Cover Image Options: File Size vs Load Time
| Item | Large Image (2 MB) | Optimized Image (300 KB) |
|---|---|---|
| Download time (10 Mbps) | ~1.6 seconds | ~0.24 seconds |
| Download time (50 Mbps) | ~0.32 seconds | ~0.05 seconds |
| Decode time (browser) | ~400 ms | ~80 ms |
| Visual quality | High | High (JPEG 80% or WebP) |
| First Paint delay | ~2 seconds | ~0.3 seconds |
You can now identify and fix the cause of slow page rendering in Notion. Start by compressing or removing cover images on your most-visited pages. If the delay persists, check for large inline images and browser extensions that block resources. For the fastest possible load, set a solid color cover and enable lazy loading in Notion settings. This approach guarantees that your page content appears instantly, regardless of network speed.