Start by measuring to find the actual bottleneck rather than guessing. Often one or two issues (a giant hero image, a heavy third-party script) account for most of the slowness, and fixing those gives the biggest jump for the least effort.
Speed is ongoing, not a one-time fix. Pages tend to get heavier over time as content, tracking scripts, and features are added, so periodic checks keep performance from quietly eroding. Building with speed in mind from the start is far cheaper than retrofitting it.
Updated July 2026
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