Skipping frames for Animated WebP

It would be good to have an option to skip frames for animated webP.
If I have a thumbnail trying to render an animated wepb image with 120 frames it could be good to render only 30 frames, to preserve speed and memory.
Maybe not the first 30 frames but skipping frames in a loop: the animation will not be very smooth obviously.

A simple, not nice looking solution to skip half of the frames:
SDImageWebPCoder.m
line 264
Adding a skipper in the loop and duplicating the duration

    int skipper = 0;
    do {
        skipper++;
        if ((skipper %2) == 0) {
            continue;
        }
            
        @autoreleasepool {
            CGImageRef imageRef = [self sd_drawnWebpImageWithCanvas:canvas iterator:iter colorSpace:colorSpace scaledSize:scaledSize];
            if (!imageRef) {
                continue;
            }

#if SD_UIKIT || SD_WATCH
            UIImage *image = [[UIImage alloc] initWithCGImage:imageRef scale:scale orientation:UIImageOrientationUp];
#else
            UIImage *image = [[UIImage alloc] initWithCGImage:imageRef scale:scale orientation:kCGImagePropertyOrientationUp];
#endif
            CGImageRelease(imageRef);
            
            NSTimeInterval duration = [self sd_frameDurationWithIterator:iter];
            SDImageFrame *frame = [SDImageFrame frameWithImage:image duration:(duration*2)];
            [frames addObject:frame];
        }
        
    } while (WebPDemuxNextFrame(&iter));

Comienza en SDImageWebPCoder.m, alrededor de la línea 264, donde se decodifican los frames WebP animados y se recopilan sus duraciones. Determina cómo debería exponerse y conservarse una opción de omisión de frames activable explícitamente en las plataformas Apple compatibles y, después, verifica el recuento de frames resultante y la temporización de la animación con un fixture WebP animado.