Android TV on bootable USB

Hi guys, so I tried to have Android TV on a bootable USB stick through Rufus.exe and I watched tutorials of Android TV on USB stick since it was interesting for me. I followed every step and got it all right. Just I have the problem that it loads very slow until it doesn't wanna load anymore. I booted an USB stick, got the datas on it, restarted my laptop (HP Pavilion x360 Convertible), got into the boot menu and selected the USB drive, selected Android TV and then it starts to read really slow. I also get into the Google loading screen but it shuts kinda down suddenly and doesn't wanna load anymore. So my question is now, if somebody got any solutions for it. Thanks for taking your time reading it and helping me!