Webpage bug

Whenever the page just loaded, and you started typing, all of a sudden after like 5 to 10 seconds, what you have typed will be all gone and you have to type them over again. It happens when you started typing and the webpage is still loading some stuff. Is there any way you guys can fix this please? its kinda annoying especially for people that types fast. thank you.

get a faster internet connection, it shouldn't take 5-10 seconds.
Either way, this should be posted in the covers help section, not here.