<span style="color: transparent; display: none; height: 0; max-height: 0; max-width: 0; opacity: 0; overflow: hidden; mso-hide: all; visibility: hidden; width: 0;">
  <blockquote>
<p dir="auto">For CPU slowdown I use browser built-in functionality.</p>
</blockquote>
<p dir="auto">Ah, chromium, got it. 20x slowdown is unrealistic. With this value, I can't move the map normally, even without the data layer. But even with 20x slowdown, the layer with 11k features is drawn in 4 seconds when rendered synchronously on my PC.</p>
<blockquote>
<p dir="auto">In such case, there would be 30 seconds freeze of browser if there was synchronous process.</p>
</blockquote>
<p dir="auto">This is not true because synchronous rendering is faster than asynchronous rendering.</p>
<p dir="auto">In general, I will most likely suggest a PR that disables asynchrony.</p><p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />Reply to this email directly, <a href="https://github.com/openstreetmap/openstreetmap-website/pull/5009#issuecomment-2739672803">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AAK2OLKW74NMIUY7GVDBGVL2VKA3NAVCNFSM6AAAAABLF5RXIWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDOMZZGY3TEOBQGM">unsubscribe</a>.<br />You are receiving this because you are subscribed to this thread.<img src="https://github.com/notifications/beacon/AAK2OLKUCEIOXCOUPFIWQPT2VKA3NA5CNFSM6AAAAABLF5RXIWWGG33NNVSW45C7OR4XAZNMJFZXG5LFINXW23LFNZ2KUY3PNVWWK3TUL5UWJTVDJQLOG.gif" height="1" width="1" alt="" /><span style="color: transparent; font-size: 0; display: none; visibility: hidden; overflow: hidden; opacity: 0; width: 0; height: 0; max-width: 0; max-height: 0; mso-hide: all">Message ID: <span><openstreetmap/openstreetmap-website/pull/5009/c2739672803</span><span>@</span><span>github</span><span>.</span><span>com></span></span></p>
</span>


<div style="display: flex; flex-wrap: wrap; white-space: pre-wrap; align-items: center; "><img alt="deevroman" height="20" width="20" style="border-radius:50%; margin-right: 4px;" decoding="async" src="https://avatars.githubusercontent.com/u/25708359?s=20&v=4" /><strong>deevroman</strong> left a comment <a href="https://github.com/openstreetmap/openstreetmap-website/pull/5009#issuecomment-2739672803">(openstreetmap/openstreetmap-website#5009)</a></div>
<blockquote>
<p dir="auto">For CPU slowdown I use browser built-in functionality.</p>
</blockquote>
<p dir="auto">Ah, chromium, got it. 20x slowdown is unrealistic. With this value, I can't move the map normally, even without the data layer. But even with 20x slowdown, the layer with 11k features is drawn in 4 seconds when rendered synchronously on my PC.</p>
<blockquote>
<p dir="auto">In such case, there would be 30 seconds freeze of browser if there was synchronous process.</p>
</blockquote>
<p dir="auto">This is not true because synchronous rendering is faster than asynchronous rendering.</p>
<p dir="auto">In general, I will most likely suggest a PR that disables asynchrony.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />Reply to this email directly, <a href="https://github.com/openstreetmap/openstreetmap-website/pull/5009#issuecomment-2739672803">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AAK2OLKW74NMIUY7GVDBGVL2VKA3NAVCNFSM6AAAAABLF5RXIWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDOMZZGY3TEOBQGM">unsubscribe</a>.<br />You are receiving this because you are subscribed to this thread.<img src="https://github.com/notifications/beacon/AAK2OLKUCEIOXCOUPFIWQPT2VKA3NA5CNFSM6AAAAABLF5RXIWWGG33NNVSW45C7OR4XAZNMJFZXG5LFINXW23LFNZ2KUY3PNVWWK3TUL5UWJTVDJQLOG.gif" height="1" width="1" alt="" /><span style="color: transparent; font-size: 0; display: none; visibility: hidden; overflow: hidden; opacity: 0; width: 0; height: 0; max-width: 0; max-height: 0; mso-hide: all">Message ID: <span><openstreetmap/openstreetmap-website/pull/5009/c2739672803</span><span>@</span><span>github</span><span>.</span><span>com></span></span></p>

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