Yes, you can hide the playback rate in the 5centsCDN video player by adding the query parameter hideplaybackrate=true at the end of the playback URL. A sample iframe code is attached below.
<!-- Add following section in the page's <body> tag, where you need the player to be shown --> <div style="width:100%;height:100%"> <iframe src="base64_encoded_url?showcv=true&title=sample/test&hideplaybackrate=true" frameBorder="0" allow="autoplay; encrypted-media" allowfullscreen style="overflow:hidden;overflow-x:hidden;overflow-y:hidden;height:100%;width:100%;position:absolute;top:0px;left:0px;right:0px;bottom:0px"></iframe> </div>