aircraft’s climb performance might be significantly degraded once memory items are applied
Which is why us oldies memorised the relevant pitch and thrust settings for this and that ... also helps a LOT if you do some manual raw data flying for practice.
they aren’t exclusively there for engine out situations
But be wary that you need to match the OEI speed program to match the turn radius in tiger country. The escape path is not much use if you aren't on it ...