Starting from ProfilePress version 2.5, Ajax mode is enabled by default whereby login, registration, password reset and edit profile forms are submitted and processed without page reload.

Below is a screenshot of how the Ajax mode works in a ProfilePress powered login form.

Ajax WordPress custom login form

If for any reason you wish to disable this behaviour or feature, you can do so by clicking the Settings ProfilePress menu, go to the Global Settings section and check or tick the Disable Ajax Mode checkbox.

Disable ajax mode of forms