Improve joypad performance

const delay = 250//ms

const delay = 350//ms

let isWaiting = false;

window.addEventListener('gamepadconnected', (e) => {

    setInterval(() => {

        if (!opts.js_modal_lightbox_gamepad) return;

    setInterval(async () => {

        if (!opts.js_modal_lightbox_gamepad || isWaiting) return;

        const gamepad = navigator.getGamepads()[0];

        const xValue = gamepad.axes[0];

        if (xValue < -0.3) {

        if (xValue <= -0.3) {

            modalPrevImage(e);

        } else if (xValue > 0.3) {

            isWaiting = true;

        } else if (xValue >= 0.3) {

            modalNextImage(e);

            isWaiting = true;

        }

        if (isWaiting) {

            await sleepUntil(() => {

                const xValue = navigator.getGamepads()[0].axes[0]

                if (xValue < 0.3 && xValue > -0.3) {

                    return true;

                }

            }, delay);

            isWaiting = false;

        }

    }, 10);

});

/*

        isScrolling = false;

    }, delay);

});

function sleepUntil(f, timeout) {

    return new Promise((resolve) => {

        const timeStart = new Date();

        const wait = setInterval(function() {

            if (f() || new Date() - timeStart > timeout) {

                clearInterval(wait);

                resolve();

            }

        }, 20);

    });

}