Performance issues

[jimtracy1007]

I use version v2.0+for message sending and receiving, which is very slow, and the filtering conditions for receiving messages do not take effect in the new version.
`
async function execSendMessageAndReturn({ message, from, to, sk, kind = 4 }) {

const tags = to ? [
    ["p", to],
    ["r", "json"]
] : []
const event = await buildEvent({
    message: message,
    kind: kind,
    targetPubkey: to,
    privateKey: sk,
    tags: tags,
});


await Promise.any(pool.publish(relays, event))

const p = getPublicKey(sk);

const filter = {
    since: event.created_at - 50,
    kinds: [4],
    '#e': [event.id],
    '#p': [p]
};

const retEvent = await pool.get(relays, filter, { maxWait: 5000 }).catch((e) => {
    console.log('e.message---->', e.message)
    return null;
});

if (!retEvent) {
    return null;
}
const content = retEvent.content;

const decryptContent = await nip04.decrypt(sk, to, content).catch(e => {
    console.error('decryptContent error', e.message)
});

if (decryptContent) {
    try {
        result = JSON.parse(decryptContent);
    } catch (error) {
        console.log("🚀 ~ execSendMessageAndReturn ~ error:", error)
        return null
    }
    return result;
}

}
`
const filter = {
since: event.created_at - 50,
kinds: [4],
'#e': [event.id],
'#p': [p]
}; This code does not take effect in the new version.

[jimtracy1007]

If I only use the filter like
const filter = {'#e':[event.id]},The response will be very slow. But version 1.17.0 is very fast.

[fiatjaf]

I think on v2 we switched to pure JavaScript decryption, while before we were using the browser native libraries.

[jimtracy1007]

I think on v2 we switched to pure JavaScript decryption, while before we were using the browser native libraries.

However, how to deal with the problem of slow reception

[fiatjaf]

You can rewrite the logic using browser libraries (or copy the old code from v1) in your app.

I think you should be using NIP-17 for DMs though, it is much better and hopefully everybody will be moving to it soon.

[jimwjl666]

您可以在应用程序中使用浏览器库重写逻辑（或从 v1 复制旧代码）。

我认为您应该对 DM 使用 NIP-17，它要好得多，希望每个人都能尽快转向它。

nip-44?