Rich RAD applications may consume a lot of resources. Client pays – and they are not so many. But when you start to migrate your business logic on the server side e.g. by publishing REST services, you will meet new performance requirements. Profiling should be the first step to avoid premature optimization, which is the root of all evil (Knuth). But when some bottlenecks are identified, we will introduce some simple data structures and algorithms to make process actually faster, with minimal refactoring. A fun session about how to write faster code, sometimes by looking at the Delphi CPU view – even if you don’t know assembly.