Absolute overhead Reactor still adds on top of raw WinUI. One row per (bench, architecture).
| Bench | Arch | V2 ns | Direct ns | V2 - Direct ns | V2 alloc - Direct alloc |
|---|---|---|---|---|---|
| M1 | Arm64 | 38140.5 | 32802.7 | +5337.8 | +1614464 |
| M10 | Arm64 | 48915.4 | 33633.4 | +15282.0 | +982405 |
| M11 | Arm64 | 33093.7 | 59.5 | +33034.2 | +1669920 |
| M12 | Arm64 | 29942.7 | 31376.3 | -1433.6 | +327947 |
| M13 | Arm64 | 155.1 | 27.4 | +127.7 | +5405 |
| M2 | Arm64 | 61894.8 | 52336.8 | +9558.0 | +5927051 |
| M3 | Arm64 | 237622.2 | 176725.0 | +60897.3 | +16448952 |
| M4 | Arm64 | 90746.3 | 33208.0 | +57538.3 | +5051883 |
| M5 | Arm64 | 86599.7 | 21245.3 | +65354.3 | +6128472 |
| M6 | Arm64 | 31742.9 | 30206.9 | +1535.9 | +1095421 |
| M7 | Arm64 | 11985.0 | 987028.6 | -975043.7 | -121924416 |
| M8 | Arm64 | 4155.2 | 4357.1 | -201.9 | +1103784 |
| M9 | Arm64 | 1429732.9 | 815246.5 | +614486.5 | +527718512 |