How to Speed Up or Slow Down Video in CapCut

Where the speed controls live

Every speed adjustment in CapCut starts the same way. Drag a video clip onto the timeline, then click it once so it's highlighted. On the right side of the screen, the properties panel updates to show that clip's options, and near the top you'll see a Speed tab. Click it.

Inside the Speed tab there are two modes:

• Normal — one constant speed for the whole clip, set with a single slider or number box.
• Curve — a flexible mode where speed changes across the clip, so you can slow down for a moment and then race forward.

That's the whole foundation. Almost everything in this guide is just one of those two modes used in a slightly different way.

Set a single speed with Normal mode

Normal mode is the fastest way to speed up video in CapCut or slow it down by a fixed amount. With your clip selected and the Speed tab open, click Normal.

1. Drag the speed slider, or type a number into the box.
2. A value of 1x is the original speed. Anything below that, like 0.5x, plays in slow motion. Anything above, like 2x or 4x, speeds it up.
3. Watch the clip get visibly shorter or longer on the timeline as you change the value — that length change is the speed change.

A few practical reference points: 0.5x makes a clip play at half speed and twice as long, which is gentle, believable slow motion. 2x halves the duration, handy for trimming dead air. 0.25x is heavy slow motion that needs high-frame-rate source footage to stay smooth. Push the slider too far and the math still works, but the footage may start to look choppy.

Make smooth slow motion

Good CapCut slow motion is about more than just dialing the speed down. When you slow a clip, CapCut has to show each original frame for longer, which can look stuttery — especially on footage shot at a standard 24 or 30 frames per second.

To smooth it out, look for the smooth slow motion option (sometimes labeled with an optical-flow or frame-interpolation toggle) below the speed slider. When it's on, CapCut generates in-between frames so motion glides instead of jumping.

• Optical flow / smart interpolation looks the cleanest but takes longer to render and can produce odd artifacts around fast, messy motion.
• Frame blend is a lighter option that softens stutter without inventing detail.

Create a time-lapse or fast-forward

Speeding footage up is the mirror image of slow motion, and it's perfect for long, uneventful clips — a sunset, a drive, a drawing taking shape, someone setting up a room. To speed up a video in CapCut into a time-lapse:

1. Select the clip and open the Speed tab.
2. In Normal mode, set a high multiplier. 4x to 10x works for most everyday footage; raise it more for very long clips.
3. Preview it. If it feels frantic, ease the number down a touch.

Two things worth knowing. First, sped-up clips lose frames, so the result can look slightly less smooth — that's normal and usually fine for a time-lapse. Second, fast footage often plays better silently. Speeding up the audio along with the video tends to create a high-pitched warble, so many editors mute a time-lapse and lay a music bed over it. We cover how to do that cleanly in How to Add Music to CapCut on PC (Without Copyright Issues).

Build speed ramps with Curve mode

This is where things get fun. The CapCut curve speed tool lets the speed change within a single clip, so a shot can glide in slow motion, snap to fast, and settle back down — all without cutting. It's the trick behind a lot of polished action and travel edits.

Select your clip, open the Speed tab, and click Curve. You'll see a graph with presets along the top:

• Montage — a balanced slow-fast-slow ramp, the most generally useful starting point.
• Hero / Bullet — dramatic dips for slow-motion "moment" shots.
• Flash in / Flash out — a quick burst of speed at the start or end.
• Custom — your own curve, built from scratch.

To shape a ramp by hand:

1. Pick a preset close to what you want, or choose Custom.
2. The dots on the curve are speed points. Drag a point down to slow that moment and up to speed it up.
3. Drag a point left or right to control when the change happens.
4. Add a point by clicking on the line; remove one by dragging it off or using the delete button.

Keep audio sounding natural

Change a clip's speed and its audio changes too. Slow it down and voices drop into a low drone; speed it up and everyone sounds like a chipmunk. CapCut has a setting to fix the pitch part of that.

In the Speed tab, look for a Maintain pitch toggle (sometimes shown as a small audio or pitch icon). With it on, CapCut keeps voices and music at a roughly normal pitch even as the tempo changes. It's not magic at extreme speeds, but for moderate edits it keeps dialogue understandable.

• For talking-head or interview clips you trim with a modest 1.25x–1.5x, keep Maintain pitch on so it still sounds human.
• For heavy time-lapses or strong slow motion, the audio rarely sounds good no matter what — mute the original and add music or sound effects instead.

Quick workflow tips

A few habits make speed edits faster and cleaner:

• Cut before you speed. Trim a clip down to just the part you want to retime, then apply speed to that piece. Retiming a whole long clip and trimming after is fiddlier.
• Reset is your friend. If a curve gets messy, hit the reset button in the Speed tab to return to 1x and start over.
• Preview at full resolution before exporting. Smooth-motion settings can look different in the small preview than in the final render.
• Pair speed with other effects. A clean slow-mo subject often shines after you isolate it — see our guides on removing a video background and changing a video background for more.

Once these click, retiming becomes second nature. A slow-motion reveal here, a brisk time-lapse there, a subtle ramp to add energy — small changes that make footage feel intentional.