I need to remove the ‘Custom’ in all Admin Grids. This to avoid a large collection request that probably making website slow.

vendor/magento/module-ui/view/base/web/templates/grid/paging/sizes.html 

I had find it’s coming from above mention file. And in a dirty way, I have an option to override this in my admin theme theme and comment out the ‘Custom’ div.

        <div class="selectmenu-item">             <button                type="button"                class="selectmenu-item-action"                data-bind="                     click: function () {                         $  data.showCustom()                             .discardEditing();                     },                     visible: !isCustomVisible(),                     i18n: 'Custom'"></button>         </div> 

However it works but still wondering if is there any other nice way to remove it?

Thanks