Recording Gameplay or Demos for Slow-Motion Replay — What to Do Differently

Recording at high frame rate for slow-motion replay

Slowing down a screen recording in post-production only looks smooth if the original recording had enough frames per second to support it — recording at a standard 30fps and then slowing it to 50% produces choppy, low-frame-count slow motion, not smooth, fluid playback.

Frame rate math: what you need to record for the slowdown you want

If you want 50% speed slow motion that plays back at 30fps, you need a source recording at 60fps. For 25% speed at 30fps playback, you need 120fps source capture. Deciding your intended playdown ratio before recording, not after, determines the minimum frame rate you actually need to capture. As noted in our quality myths guide, frame rate is one of the few settings where “higher is genuinely better” has a real, specific justification — and this is that justification.

Check whether your recorder actually supports your needed frame rate

Not every screen recorder supports 60fps capture, and fewer support 120fps — tools like Mirillis Action! and Bandicam are specifically designed for high-frame-rate gameplay capture, while some general-purpose recorders cap out at 30fps regardless of settings. Confirming your specific tool’s actual maximum before planning a slow-motion recording avoids discovering the limitation after the recording is done.

“Recording at 30fps and then slowing it down to 50% speed gives you 15fps slow motion — playable but obviously choppy. Recording at 60fps first means 50% speed is still 30fps — smooth, fluid slow motion from the same content.”

Storage implications of high-frame-rate capture

As covered in our storage guide, 60fps recordings are meaningfully larger than 30fps recordings of the same content, and 120fps recordings are larger still — calculating your available storage before a long high-frame-rate capture session avoids running out mid-recording and ending up with a truncated file.

Hardware encoding matters even more at high frame rates

Encoding 60fps or 120fps capture puts significantly more load on your system than standard 30fps — hardware encoding (covered in the context of frame drops in our frame-drop guide) becomes more important here than it is for standard recording, since software encoding at very high frame rates can itself cause the frame drops you were trying to avoid.

Frequently asked questions

What frame rate should I record at for slow-motion replay?
Multiply your intended playback frame rate by your slowdown factor — for 50% speed at 30fps playback, you need 60fps source capture; for 25% speed, you need 120fps.

Does every screen recorder support 60fps capture?
No — this is a capability that varies significantly by tool. Check your specific recorder’s maximum supported frame rate before planning a slow-motion recording workflow around it.