PHP images heavy load.

[xbatista]

So I have a heavy load of total ~64 split images in <TD> background from the one source.jpg(which size 70KB). I don't know how to fix that, it seems that something wrong in my code ,please help me to solve that. Code of split images works fine, but loads those images for about ~15seconds.

// img.php file for displaying images
<?php
$in_filename = 'source.jpg';

$xcord = $_REQUEST['ggridx']-1;
$ycord = $_REQUEST['ggridy']-1;

//list($width, $height) = getimagesize($in_filename);

$map_grid_size = 60;

$image = imagecreatefromjpeg($in_filename);
$new_image = imagecreatetruecolor($map_grid_size, $map_grid_size);

imagecopy($new_image, $image, 0, 0, $xcord*$map_grid_size, $ycord*$map_grid_size, $map_grid_size, $map_grid_size);

header('Content-Type: image/jpeg');
imagejpeg($new_image);
imagedestroy($new_image);
imagedestroy($image);

?>

// Main file where I'm calling
    $map_display = "";
    for ($Ty = $start_y; $Ty <= $end_y; $Ty++) {
        $map_display .= "<tr>";
        for ($Tx = $start_x; $Tx <= $end_x; $Tx++) {
            //show grid
            $map_display .= "<td style=\"background-image: url('img.php?ggridx=$Tx&ggridy=$Ty');\">";
            $map_display .= DisplayGrid($Tx,$Ty);
            $map_display .= "</td>";
        }
        $map_display .= "<tr/>";
    }