Systems and methods for servicing page requests from a cloud-based software service. In particular, page tree elements defining a page requested from a backend of a cloud-based software service can be can be transmitted in a manner that prioritizes elements and functionality likely to be interacted with by a particular user first (e.g., within a threshold time of apparent pageload completion). Other elements unlikely to be interacted with by the user may be loaded asynchronously and/or on a deferred basis. Inputs provided to these elements can be buffered by an input buffer script to capture unexpected inputs thereto.