The function to export view in pdf takes a long time when generating the pdf to the point of reaching the maximum execution time. my function is like this:

      $report->run()
      ->export()
      ->pdf(array(
          "width"=>"200px",
          "height"=>"95px",
          "zoom" => 0.4,
          "margin"=>array(
              "top"=>"5px",
              "bottom"=>"5px",
              "left"=>"5px",
              "right"=>"0px"
          ),
      ))
      ->toBrowser("report.pdf", true);

how to solve this?