Reduce pageSize when downloading to 10

At a pageSize of 50 with `detail=true` we are seeing response times near 30s,
sometimes timing out.

In some brief testing reducing the pageSize to 10 results in requests that take
3 to 6 seconds. Setting a pageSize of 20 doubles the response time but
interestingly setting a pageSize of 5 doe _not_ reduce the request time. There
appears to be a performance floor.

CHANGELOG.md

@@ -11,6 +11,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Changed
 
+- Reduce pageSize when downloading to 10 [#1763](https://github.com/open-apparel-registry/open-apparel-registry/pull/1763)
+
 ### Deprecated
 
 ### Removed

src/app/src/components/DownloadFacilitiesButton.jsx

@@ -13,7 +13,7 @@ import {
     failLogDownload,
 } from '../actions/logDownload';
 import { fetchFacilities } from '../actions/facilities';
-import { FACILITIES_REQUEST_PAGE_SIZE } from '../util/constants';
+import { FACILITIES_DOWNLOAD_REQUEST_PAGE_SIZE } from '../util/constants';
 
 const downloadFacilitiesStyles = Object.freeze({
     listHeaderButtonStyles: Object.freeze({
@@ -48,7 +48,7 @@ function DownloadFacilitiesButton({
         dispatch(startLogDownload());
         dispatch(
             fetchFacilities({
-                pageSize: FACILITIES_REQUEST_PAGE_SIZE,
+                pageSize: FACILITIES_DOWNLOAD_REQUEST_PAGE_SIZE,
                 detail: true,
                 onSuccess: () => dispatch(logDownload(format, { isEmbedded })),
                 onFailure: () => dispatch(failLogDownload()),

src/app/src/util/constants.js

@@ -4,6 +4,7 @@ import { checkWhetherUserHasDashboardAccess } from './util';
 export const OTHER = 'Other';
 
 export const FACILITIES_REQUEST_PAGE_SIZE = 50;
+export const FACILITIES_DOWNLOAD_REQUEST_PAGE_SIZE = 10;
 
 export const WEB_HEADER_HEIGHT = '80px';
 export const MOBILE_HEADER_HEIGHT = '68px';