需要帮助来优化 PHP 迭代

为了让我获得我需要的数据，我需要遍历不同的表来获取我需要的数据。

有我的被问，给我数组，我必须遍历它们并计算等等

下面是一个示例代码：

$CompanyDepartmentandUserWiseDataString = array();
            foreach($Arrays1 as $Array1)
            {
                foreach($Arrays2 as $Array2)
                {
                    if($Array2->id == $Array1->id)
                    {
                        $SelectedCompanyDepartmentPercentage = calculate y;                        
                            foreach($Arrays3 as $Array3)
                            {
                                if($Array3->id == $Array1->id)
                                {
                                  $CompanyDepartmentandUserWiseDataString[] = list the catagories;  
                                }
                            }                 
                            foreach($Arrays3 as $Array3)
                            {                            
                                if($Array3->id == $Array1->id)
                                {
                                    foreach($Arrays4 as $Array4)
                                    {                                        
                                        if($Array4->id == $Array3->id)
                                        {
                                            $SelectedCompanyDepartmentUserPercentage = calculate data;
                                            foreach($Arrays5 as $Array5)
                                            {
                                                if($Array5->id == $Array4->id)
                                                    $CompanyDepartmentandUserWiseDataString[] = print;
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                    }
                }               
            }
            return $CompanyDepartmentandUserWiseDataString;

上面的代码生成以下内容：

data = [{ y: 55.11, color: colors[0]
         }, {
             y: 21.63, color: colors[1], drilldown: {
               name: 'Firefox versions', categories: ['Firefox 3.6', 'Firefox 4.0', 'Firefox 3.5', 'Firefox 3.0', 'Firefox 2.0'], level: 1,
                                         data: [13.52, 5.43, 1.58, 0.83, 0.20], 
                      color: colors[1]
            }
         }, {
            y: 11.94, color: colors[2], drilldown: {
               name: 'Chrome versions', categories: ['Chrome 10.0', 'Chrome 11.0', 'Chrome 8.0', 'Chrome 9.0', 'Chrome 12.0', 'Chrome 6.0', 'Chrome 5.0', 'Chrome 7.0'], 
                                        data: [9.91, 0.50, 0.36, 0.32, 0.22, 0.19, 0.12, 0.12], 
                      color: colors[2]
            }
         }, {
            y: 7.15, color: colors[3], drilldown: {
               name: 'Safari versions', categories: ['Safari 5.0', 'Safari 4.0', 'Safari Win 5.0', 'Safari 4.1', 'Safari/Maxthon', 'Safari 3.1', 'Safari 41'], 
                                        data: [4.55, 1.42, 0.23, 0.21, 0.20, 0.19, 0.14], 
                      color: colors[3]
            }
         }, {
            y: 2.14, color: colors[4], drilldown: {
               name: 'Opera versions', categories: ['Opera 11.x', 'Opera 10.x', 'Opera 9.x'], 
                                       data: [1.65, 0.37, 0.12], 
               color: colors[4]
            }
         }];

如何优化它以加快性能。 系统非常慢

请帮忙