when your frame rate drops keys can become unresponsive. Next time just hold the key down instead of tapping it.
A bit OT, but you do know that you will never be attacked by planes at such high time compression and you will end up right next to destroyers before your TC automatically drops sometimes because the game does not have time to calculate your, or the destroyers, position often enough.
Planes will miss you sometimes at anything over x256. Destroyers will start to appear to close in fog at x1024. above x1024 destroyers will appear too close at any weather.
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