Performing the following (note the range of 10,000):

`importmulti '[{"desc": "sh(wpkh([aeee1e6a/49h/1h/0h]tpubDC5bVdaveQYxGFztMShFAjU637kKjrs9FD8ne1oHR7z8tLeQJExsaxWRVeSpcCcYMdp5ecf2LQhuVaeYFZ7YEpvWTJr4nDGUJrmuvLuTSsp/1/*))", "keypool": true, "timestamp": "now", "watchonly": true, "internal": true, "range": {"end": 1000}}]' '{"rescan": false}'`

takes many minutes. @achow101 reports a similar import taking 6 minutes on his machine.
SetMinVersion(FEATURE_WALLETCRYPT, encrypted_batch, true);
        if (!encrypted_batch->TxnCommit()) {
            delete encrypted_batch;
            encrypted_batch = nullptr;
            
            
            assert(false);
        }
        delete encrypted_batch;
        encrypted_batch = nullptr;
        Lock();
        Unlock(strWalletPassphrase);
        
        if (IsHDEnabled()) {
            SetHDSeed(GenerateNewSeed());
        }
        NewKeyPool();
        Lock();
        
        
        database->Rewrite();
        
        
        
        database->ReloadDbEnv();
    }
    NotifyStatusChanged(this);
    return true;
}
DBErrors CWallet::ReorderTransactions()