Hello, I have Radeon HD 5450 on Ubuntu 20.04 and using standard drivers installed by Ubuntu during the system installation. I noticed that while watching for example Netflix or YouTube, videos are not smooth and fluent as it used to be while using Windows on this machine. I can't find drivers for my Radeon HD 5450 video card for Ubuntu 20.04, can you help me, which driver should I choose or what I can do to fix it?