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> And to top it off I just got a 256GB M2 Macbook air for travelling which has horribly crippled IO perf compared to the other models, which I didn't realise until after I bought it.

Do you really feel the crippled IO perf? I mean this machine still has read rates between ~800 and 1700 MB/s. Thats not exactly the definition of slow.

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I debated about spending the extra whatever to go to the larger/faster storage due to this problem. In the end I went for the base/lowest cost MBA M2 because it's still plenty fast day to day for me and only on rare occasions would I need that extra bump in speed. Even then the difference is probably seconds rather than minutes or hours.

The most ridiculous part of all of this is that they're pushing a pro machine with crippled IO performance.

Not for writing and reading actual files, no. But the 8GB of ram means it can swap to disk quite easily, and the faster speeds really make a difference with that. My M1 mac mini I got to play around with the new arch feels much much faster when memory constrained because of this.

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