1080p videos lag on my laptop

[Pikolasti]

Hello.I can't watch 1080p video,but 720p is allright.Who knows,how to fix?
I found on this forum suggestion:
"Did you adjust the post processing routines in VLC? On the inputs and codecs menu, turn "skip H.264 in-loop deblocking filter" to all"
I tried it,but that don't work to me.
I also thinking,can i convert this video for normal view?It seems to be HD,but i don't know how to convert

 

[Prostar Computer]

Is your computer capable of running 1080p smoothly? It may just be VLC. Users will need more info about your system to help.

 

[Pikolasti]

No,i tried with VLC,PotPlayer,Windows media player,Quicktime player-everywhere 1080p video lags,impossible to watch.I have hi-grade laptop.
Maybe it's just my system and i my laptop can't run these videos.If so,i want just to convert video like i said,but i don't know which tool i need

 

[jarotech]

Hi, again you didn't mention what laptop you have. If you have an AMD APU in the low end, the best program is PotPlayer, depending of your CPU, the 64-bit is recommended. But if you have a video in 1080p with a high bit rate, there will be lags, nothing you can do about it.

 

[Pikolasti]

And there is no way to convert it???I just don't know what should i convert the 1080p to 720p maybe?Or bit rate?Or maybe the size?
So can anyone tell me IS THERE A WAY TO CONVERT THIS HD 1080p VIDEO to normal,not HD,watchable video?