A method for determining a performance trend of a software application based on performance indicators of the software application. The method receives corresponding access requests from the client computing machines from a user interface framework of the software application that includes at least one command for submitting corresponding operation requests, and estimates corresponding expected response times of the software application for serving the operation requests in response to the access requests. The expected response time of each of the operation requests is estimated according to a comparison of the operative conditions that correspond to the operation request with the performance trend. The method transmits corresponding performance artifacts that are based on the expected response times associated with the user interface framework, to the client computing machines that cause the client computing machines to provide corresponding warnings.