How to make a tiled program less laggy

[BeautiCode]

So I'm fairly new to SFML, I have a new game in development which is almost complete.
It's sort of laggy though, it has a big tilemap and theres a character ontop of the tiles that move around.

It's sort of like this

int main()
{
       while(window.isopen())
       {
               while(pollevent)
                 {
                         CHECK_IF_HOLDING_KEY_AND_MOVE_CHAR_POSITION_IN_DIRECTION();
                 }
         DRAW_AND_DISPLAY_CHARACTER_AND_ALL_TILES();
         }
}
 

It's sort of skippy.       

[Strelok]

Try this way

int main()
{
SOMEGENERICFUNCTIONALLINCAPSLOCK();
return 0;
}

[G.]

Draw only the tiles that are inside the view.
And maybe use vertex arrays, if you're not already using them.

[BeautiCode]

Alright thanks guys