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Performance
Responsive controls. Fast recognition across two displays.
First labels on both displays0.28 sTwo 4K displays · 800 controls · Hybrid
Everyday response9–18 msScroll · Grid · Window controls
Startup idle memory11 MiBAs shown in Task Manager
Measured with KeySteer 0.12.2 on Windows.
Response time
Scrolling, targeting, and window actions typically respond in 9–18 ms. With 800 controls on two 4K displays, the first labels appear on both in about 0.28 s. Start typing as soon as you see your target.
Scrolling, targeting & window actionsms · lower is faster
UI Hint · first labelsms · lower is faster
Pointer position update: 0.25 ms (system coordinates)
Memory usage
About 11 MiB at startup idle, 15–19 MiB after everyday actions, and 26–28 MiB after UI Hint recognition. Recognition briefly uses more memory, so the chart also shows the highest usage recorded during testing.
Memory is measured as shown in Task Manager. Including the parts shared with Windows, startup usage is about 37.5 MiB.
Memory by scenarioMiB
Memory after actionHighest recorded
Startup idle 11.2 MiB · Idle after use 18.8 MiB
Detailed results
“First” is the first action after startup; “Repeat” is continued use. “Typical” response and “After” memory show the middle values across repeated tests.
| Scenario | Response time (ms) | Memory (MiB) | ||||
|---|---|---|---|---|---|---|
| First | Repeat | Typical | Slowest | After | Highest recorded | |
| Pointer movement | 0.15 | 0.25 | 0.25 | 0.38 | 15.5 | 15.7 |
| Scrolling | 7.5 | 8.5 | 8.5 | 9.3 | 15.5 | 16.2 |
| Grid | 25.3 | 17.4 | 17.6 | 33.2 | 19.2 | 20.0 |
| Recursive Grid | 25.1 | 17.3 | 17.3 | 25.2 | 18.2 | 18.5 |
| Window movement | 25.0 | 9.1 | 9.1 | 25.3 | 18.7 | 18.9 |
| Quick split | 8.9 | 9.1 | 9.0 | 33.3 | 18.7 | 19.0 |
| UI Hint · one window | 167.0 | 183.5 | 183.3 | 275.1 | 26.3 | 114.5 |
| UI Hint · both displays | 250.0 | 291.8 | 275.3 | 408.1 | 28.2 | 87.1 |
About these tests
Tested on 2026-10-18 with KeySteer 0.12.2 on Windows. Response and memory were tested separately, each covering eight scenarios and 120 actions. UI Hint used Hybrid recognition, with 400 controls in one window or 400 per display.
- Response: from a test keypress within the mode to a picture change; pointer movement uses position changes. Physical keyboard and monitor delays are excluded.
- Recognition: timing ends when the first labels appear on both displays. More labels continue to arrive. Search and exit time are separate.
- Memory: KeySteer only, excluding other programs and graphics memory. The highest value is the highest usage recorded during testing.