I've got a problem with my gameplay on google chrome on PC. When I play on Chromecast Ultra on my TV (I got settings on balanced 1080p because of my internet that cannot handle 4k) i got good sharp image everyting is okay and It is wireless. But when I go play a session on my PC on google chrome what it was conected with cable the image cannot be sharp all the time. Changing from sharp to littlebit blurry (I think its jumping from 1080p to 720p and sometimimes its really blurry). So what the heck? On wireless on tv is okay but on cable on pc it cannot handle?
It will always run faster and smoother on a Chromecast than a PC because PCs are more likely to have a bunch of background services running which degrade the internet quality. There are other posts talking about this issue, with some potential workarounds suggested. You should look those up.