why my interface look ugly when visit lucky bit ?
Is it because my resolution or my bad internet connection ?

1.Try F5 / Refresh Your Browser , clear your cookies, history etc .
2.Update Your Browser
3.Check Your Connections
That problem is not from Luckybit site , i believe that you have bad connections at that time.
CTRL+F5 or CTRL+R should do it. If not, delete the cache associated to LB. No need to delete your history or update your browser.
(on your screenshot, you clearly have an outdated version of some graphics, browsers are crazy with caching sometimes).