<p></p>
<blockquote>
<p>A long chain sync at startup locks up the UI thread until it's done</p>
</blockquote>
<p>BitcoinJ is woing its work on a dedicated thread but as it takes 100% of available CPU it also slows down the userthread.</p>
<p>The DAO sync is running on userthread but the BSQ tx verification itself is super fast and the the problem. I think the problme is some client code reacting on state changes and doing expensive operations (e.g. lookups). There have been done some improvements already but I think there is more needed, but not a trivial task...</p>

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