https://specbranch.com/posts/expensive-abstraction/
For many computer systems, abstraction misalignment is where we spend the majority of our resources: both in terms of engineering costs and compute time. Building apps at a high level pays dividends in terms of getting them set up, but eventually the bill comes due, either in the form of tech debt, slow performance, or both. Conversely, systems where abstractions are well-aligned throughout the tech stack, like high-frequency trading systems and (ironically) chat apps, are capable of amazing feats of engineering.
Given the freedom to align your abstractions to your goals, amazing things are possible.