graphics/gpu-simple is very slow

[Acelya-9028]

Hello,
I actually use your XorTroll/aarch64-switch-rs demo as base for a joy homebrew and it works very well.
Today, I retried the examples/graphics/gpu-simple demo before migrate my code to this more recent version of the library and the fps is very slow.

I tried this simple loop and I have ~4 fps.

let mut index = 0;
loop {
    surface.start()?;
    surface.clear(Black.into());
    surface.draw_font_text(&font, index.to_string(), White.into(), 25.0, 10, 10, true);
    index += 1;
    surface.end()?;
}

I have updated my toolchain to the latest nightly to support const_fn_fn_ptr_basics feature.

With the old demo in XorTroll/aarch64-switch-rs and the same code, I have 30 fps.
I can't compile the old demo with the latest nightly so I use an old nightly (2020-08-20) and it works very well.

Have you an idea?

Furthermore, the binary size is ~550kb for the old demo and ~1.50mb now.
It's normal?

Thank you very much for your help.

[SpeckyYT]

Same issue over here

[SpeckyYT]

Nevermind, I compiled it in debug mode and it gives around 4fps, but now I compiled it in release and now it runs at around 60fps.