How can you display 200 products per page? The current maximum option is 100.
If you are familiar with PHP programming then it will be easy to change,
Go to your-plugins-directory/jigoshop/classes/ and open the file jigoshop_options_class.php at line 811 change the max value 100 to 200
It should look like this:
'extra' => array( 'min' => 1, 'max' => 100, 'step' => 1, ),