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.
if (IsCurrentForAntiFeeSniping(chain, locked_chain)) {
        locktime = height;
        
        
        
        
        if (GetRandInt(10) == 0)
            locktime = std::max(0, (int)locktime - GetRandInt(100));
    } else {
        
        
        
        locktime = 0;
    }
    assert(locktime <= height);
    assert(locktime < LOCKTIME_THRESHOLD);
    return locktime;
}
OutputType CWallet::TransactionChangeType(OutputType change_type, const std::vector<CRecipient>& vecSend)