Hearthstone using 90% of computers CPU?

Hello, started hearthstone today, tried to play it, lagged to the point i couldn’t even close it.
Opens task manager.
//since i cant post images or links ill describe it as i saw it. Enjoy :clown_face:

|Name of prosses | Status β€” β€” β€” - | CPU β€”|Memory β€” β€” β€” β€” β€”|
|Hearthstone β€” – | Not responding | 85,7% | 2047,4 MB or 30~50%|

|Disk β€” β€” β€” β€” – | Network β€” β€” β€”| GPU --|GPU engine - |
| 0,2 MB/s β€” β€” β€”| 0 Mbps β€” β€” – – |18,4% |GPU 0 - 3D β€” |

| Power usage β€” -| Power usage trend |
| Very high (in red)| High (in orange) β€” |

//Quite bad for an program dating back over 10 years and history of running poorly

I’m like β€œYikes that’s not good.” Closes it, tries updating drivers on computer and graphic-card and tries to launch it again.
Same issue.
Feels bad, just wanted to play. Guess the only solution is uninstalling it and never playing it again since it is running like a pyramid, as smoothly as gravel and as optimised as a Government. :clown_face:

//tl:dr It’s horrible bad, like Malware levels of Bad :space_invader: