c# - colour cell in datagridview performance -

i need color particular cell in datagridview. tried doesn't work.

datagridview1.rows[1].cells[1].style.backcolor = color.red; 

but whole column works...

datagridview1.columns[2].defaultcellstyle.backcolor = color.red; 

then tried below code , did work performance of datagridview slow when comes 2k rows. possible make performance better or other way color particular cell in datagridview. thanks!

private void datagridview1_cellformatting(object sender, datagridviewcellformattingeventargs e) {     datagridviewcellstyle makeitred = new datagridviewcellstyle();     makeitred.backcolor = color.red;      //make whole column red     datagridview1.columns[1].defaultcellstyle = makeitred;      //make specific cell red     datagridviewrow row2 = datagridview1.rows[2];     row2.cells[2].style = makeitred; }