Impact of creating calculated fields in Workday

What is the effect of making computed fields in Workday Will it make Workday slower, if this is slower how we can maintain a strategic distance from to roll out a few improvements uncommonly for joining ?

Is it better to have a report based computed fields. In the event that Yes, at that point will it affect on the report just ?

Is Workday https://goo.gl/vrTu92 doesn’t computed field OR they have any uncommon proposal on this ?