When running walletpassphrase on a large wallet.dat (ie about 300,000 segwit P2SH addresses) the command sometimes takes a very long time, and if command is run multiple times at once (while running slow) it causes bitcoin core to freeze (stops syncing and requires kill -9 to stop/restart)

During the locked up walletpassphrase commands being run the following messages start to appear in the debug.log:

`018-01-24 01:01:04 socket sending timeout: 1201s`

Note that this problem is intermittent, so sometimes the command runs instantly, other times it takes a few minutes, and other times it completely freezes the node.
if (m_wallet_descriptor.range_end <= m_max_cached_index && !TopUp(1)) {
            
            error = "Error: Keypool ran out, please call keypoolrefill first";
            return false;
        }
        if (!m_wallet_descriptor.descriptor->ExpandFromCache(m_wallet_descriptor.next_index, m_wallet_descriptor.cache, scripts_temp, out_keys)) {
            
            error = "Error: Keypool ran out, please call keypoolrefill first";
            return false;
        }
        Optional<OutputType> out_script_type = m_wallet_descriptor.descriptor->GetOutputType();
        if (out_script_type && out_script_type == type) {
            ExtractDestination(scripts_temp[0], dest);
        } else {
            throw std::runtime_error(std::string(__func__) + ": Types are inconsistent. Stored type does not match type of newly generated address");
        }
        m_wallet_descriptor.next_index++;
        WalletBatch(m_storage.GetDatabase()).WriteDescriptor(GetID(), m_wallet_descriptor);
        return true;
    }
}
isminetype DescriptorScriptPubKeyMan::IsMine(const CScript& script) const
{
    LOCK(cs_desc_man);
    if (m_map_script_pub_keys.count(script) > 0) {
        return ISMINE_SPENDABLE;
    }
    return ISMINE_NO;
}
bool DescriptorScriptPubKeyMan::CheckDecryptionKey(const CKeyingMaterial& master_key, bool accept_no_keys)