Cap.so High CPU and Memory While Recording

High CPU and memory during capture show up as fans, dropped frames, and shorter usable takes. CapSoftware/Cap still tracks a long-open request to reduce resource use while recording, plus a 2026 idle memory growth report. Checked 2026-09-16.

GitHub sources (checked 2026-09-16)

• #109 : Reduce CPU / memory usage whilst recording. Opened 2024-10-09. Still open on the check date. Nearly two years on the board.
• #2214 : Cap.exe grows to 3.8GB RAM / 65k handles while idle. Background memory and handle growth reported with no active recording.

#109 is about cost during capture. #2214 is about cost while idle. Together they are a resource story, not a single crash title.

Quick probe if Cap feels heavy on your machine

1. Note baseline RAM and CPU with Cap quit.
2. Launch Cap. Wait one minute idle. Note RAM and handle/CPU if your OS shows them.
3. Record a 3 minute 1080p or 4K take with the apps you normally demo.
4. Compare CPU during capture and RAM after stop.
5. If idle growth or capture cost is already high in the probe, do not schedule a 40 minute lesson on that setup.

ScreenKite: Built Native

ScreenKite is a native macOS 15+ recorder and editor (Apple Silicon and Intel). Recording and export run natively on your Mac, not in a browser shell. Free editing includes every feature. Free export carries a brand watermark and an animated brand outro. Pro is one payment for clean exports on 3 devices.

What you get

• Account required.
• Pro: $79.99 founder until 2026-10-31, then $99.99. No subscription.
• AI fee $0. Agents: Claude Code, ChatGPT Codex, Antigravity, Grok Build, Kimi.
• 83 purpose-built editing tools, shaped by tens of thousands of hours of video-editing practice.
• Exports are lightning fast in our tests and in user feedback.

People at Apple, Reddit, HubSpot, and GitHub use ScreenKite. See screenkite.com.

How it is built

Local projects on disk. Agent and UI share 83 purpose-built tools over local MCP. Named cut and transcript actions can return a plan before they mutate. Share finished files through Google Drive or your own host.

Cap resource reports vs ScreenKite

Any downsides? The only downside is there's almost no downside, because we're video creators ourselves and know what users need.

ScreenKite runs natively on macOS and ships a native Windows Beta. It's lightning fast, in our tests and in user feedback, and you edit on the timeline with the AI agent you already use: Claude Code, ChatGPT Codex, Antigravity, Grok Build or Kimi. Describe the cut, and the agent does the trims.

Is Cap's CPU and memory request resolved?

Not when checked on 2026-09-16. #109 has been open since 2024-10-09.

Are clean exports included on the free tier?

No. Free to start with watermarked export and an animated outro. Pro removes both on one payment.

Bottom line

Cap #109 (open since 2024-10-09) and #2214 (idle multi-GB growth) are public resource threads checked on 2026-09-16. ScreenKite is the native Mac alternative: free editing, exports lightning fast in our tests and in user feedback, or $79.99 founder / $99.99 after 2026-10-31 for clean exports on 3 devices. People at Apple, Reddit, HubSpot, and GitHub use ScreenKite.

Try ScreenKite.