Draft: analyzing slowness (not to be merged)

Context

The app can be very slow sometimes but it is even worse in dist mode. These situations arrive mostly during signing parts on when dealing with crypto.

Here are some narrowing of this behaviour.

in dev mode (execution time in ms)

in dist mode (execution time in ms)

The culprit

In taquito's InMemorySigner

constructor(key: string, passphrase?: string) {
...
        const encryptionKey = pbkdf2.pbkdf2Sync(passphrase, salt, 32768, 32, 'sha512');
...
}

and in umami's HD.re

let edesk = (path, seed, ~password) => {
...
      let encryptionKey = pbkdf2Sync(password, salt);
...
};

Something that might be related on pbkdf2 :

Conclusion: unrelated

Replace pbkdf2 by crypto

crypto has the same implementation as pbkdf2 but in node. Replacing this deps both in umami and in a vendored taquito signer produces an extremely fast onboarding.

in dist mode, we have: