I have played this title before, even on my previous device, so far I have not found any major bugs, some problems with dinosaur animations that greatly exceed the size of your house and bounce when you try to get them out of where they are, but otherwise, no major bugs.
And yes, for a pc it is too heavy unless it is a decent one of at least 1000$ with good processor and graphic card.
RE: [ENG-ESP] Ark Survival Evolved Mobile Edition