如何在应用程序中正确重新加载信息？

I'm developing a Angular App using Restangular with Web Services REST, but when I change between sessions several user the information have a delay to display information. for example a view CustomerDetail with Information of User1 but when I change a User2 then it show me information of User1 and later in n seconds show information correctly the user User2.I'm developing a Angular App using Restangular