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.
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();
    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }
    if (request.fHelp || request.params.size() != 2)
        throw std::runtime_error(
            RPCHelpMan{"importprunedfunds",
                "\nImports funds without rescan. Corresponding address or script must previously be included in wallet. Aimed towards pruned wallets. The end-user is responsible to import additional transactions that subsequently spend the imported outputs or rescan after the point in the blockchain the transaction is included.\n",
                {
                    {"rawtransaction", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "A raw transaction in hex funding an already-existing address in wallet"},
                    {"txoutproof", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex output from gettxoutproof that contains the transaction"},
                },
                RPCResults{},
                RPCExamples{""},
            }.ToString()
        );
    CMutableTransaction tx;
    if (!DecodeHexTx(tx, request.params[0].get_str()))
        throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
    uint256 hashTx = tx.GetHash();
    CWalletTx wtx(pwallet, MakeTransactionRef(std::move(tx)));
    CDataStream ssMB(ParseHexV(request.params[1], "proof"), SER_NETWORK, PROTOCOL_VERSION);
    CMerkleBlock merkleBlock;