We have a stock photo we'd like to use on our website but there are a few issues with it. First, it needs to be a shade darker so the white background text shows up better. Second, it needs to load faster. Third, the same image needs to present on all browsers and devices. Right now, the image seen on the phone is different than what is presented on the desktop. We'd like the desktop image to be the one that is shown across device sizes. The site address is [url removed, login to view] The stock photo we are using is attached.