Lack of loop and reduce functionality in Qlik sense has a big impact on reload time of the apps in multi-tenant architecture. In Qlikview, we used to be able to reload one app and then use the loop and reduce to generate 100 apps. With lack of the loop and reduce in Qlik Sense, we have to create 100 copies of the app and reload them one by one witch adds significant time to our reload.
Also using section access means that we need to create one huge single app with section access which puts a lot of demand on memory requirements. It also takes much longer to initially open the apps.