Join the afterparty.

https://desuarchive.org/g/thread/105051605/

Only reasonable alternatives are listed here, ignore all ego projects not on this list.

Install SpookyX
github.com/Fiddlekins/SpookyX
It's broken by default though, so read this:
github.com/Fiddlekins/SpookyX/issues/35

for some reason desuarchive has a script to disable realtime on non-/a/ boards but you can just run the original code in your js console to get it working
can't paste it here for some reason but ctrl-f "enableRealTime =" in desuarchive.org/foolfuuka/foolz/foolfuuka-theme-foolfuuka/assets-1.2.28/board.js, and either copy the code inside out to your js console or add it to a userscript

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if (realtime == false)
{
    realtime = true;

    jQuery('.js_hook_realtimethread').html(backend_vars.gettext['thread_is_real_time'] + ' <a class="btnr" href="#" data-function="realtimeThread">' + backend_vars.gettext['update_now'] + '</a>');
    setTimeout(realtimethread, 10000);
}

or you can add this ublock origin filter
desuarchive.org##^script:has-text('writable: false')

Or use