You're not supposed to read them precisely, but pattern match it, and it takes less than a split second for most of us.
You might have an atypical brain, and I respect that, but most people's brain work that way.
This is why dashboards do not have "sea of green lights", but things light up when things go wrong, because it breaks the pattern and gets your attention.
Your brain is much more capable than you think. It can do much more things without you notice. Like you have a peripheral vision close to 180 degrees, and even if it's blurry, your brain processes that space for (pattern) anomalies, without you noticing.