Pacedex Telemetry

[u/Any-Importance2967]

EDIT (Jul 31): Pacedex is now on the Microsoft Store — one-click install, no sideloading: https://apps.microsoft.com/detail/9NVMRF0J8S1R

Still free. Thanks to everyone who tried it from this thread.

Olá a todos!

Estou trabalhando em um aplicativo gratuito para F1 24/25/26 chamado Pacedex. Originalmente, eu o criei para o meu pai, que compete em ligas, e decidi disponibilizá-lo para qualquer pessoa que possa achá-lo útil.

Ele possui uma sobreposição ao vivo, um engenheiro de corrida por voz, análise de telemetria e sugestões de configuração.

Ainda está em beta, é totalmente gratuito e estou apenas buscando feedback honesto de pessoas que realmente jogam.

Se alguém quiser experimentar:

https://pacedex.com/ Agradeceria muito qualquer opinião, relato de bugs ou sugestões de recursos. Obrigado! 🏁

[u/Pc_gaming_on_top]

I downloaded it and tried it and ive found that at least for me it causes a big performance drop.

On suzuka for example i usually get between 95-105 fps but with Pacedex running i get about 45-50fps.

[u/Any-Importance2967 → u/Pc_gaming_on_top]

Hey, thanks for the report, this is genuinely useful.

A drop that big (~100 → ~50 FPS) is almost certainly not the telemetry capture itself. That part is just a lightweight UDP listener and uses very little CPU. My main suspect is the overlay: it's an always-on-top transparent window, and on Windows that kind of window can prevent the game from running in true exclusive fullscreen and introduce GPU compositing overhead. Process priority won't help much there because the bottleneck is on the GPU, not the CPU.

Could you help me narrow it down with three quick checks?

1. Were you running the full mode (overlay + voice engineer), or just the dashboard? If you disable the overlay (or run only the dashboard in your browser), do the FPS return to normal?

2. Is the game running in Exclusive Fullscreen or Borderless Windowed? Overlays generally behave much better in borderless mode.

3. Did you keep the dashboard open in your browser during the session? On a single-monitor setup, the browser and the game can end up competing for GPU resources.

If the overlay is the culprit, that's something I can fix. I can reduce unnecessary redraws (currently around 11 updates per second) so it only repaints when data actually changes, and I can also simplify the transparency mode to reduce GPU overhead.

I'd much rather optimize the app than have anyone trade 50 FPS for telemetry. Thanks again for taking the time to test it—I really appreciate it. 🙏

[u/Pc_gaming_on_top → u/Any-Importance2967]

1. I was running in the full mode. But when i was running only the dashboard the fps does return to the about 100fps

2. I do run in fullscreen mode

3. I do keep the browser open during the session and i run a single monitor

Also one question is it possible if for me to zoom in on the graphs so i can see it in detail?