How to return results in less than 1 second from Splunk java SDK?

[Anton_Pushkar_]

I am trying to get 10 events from Splunk. But it takes more than 40 minutes when UI returns results less than 1 sec

        String token = "token";
        String host = "splunk.mycompany.com";
        Map<String, Object> result = new HashMap<>();
        result.put("host", host);
        result.put("token", token);
        HttpService.setSslSecurityProtocol(SSLSecurityProtocol.TLSv1_2);

        Service service = new Service(result);
        Job job = service.getJobs().create("search index=some_index earliest=-1h |head 10");
        while (!job.isReady()) {
            try {
                Thread.sleep(500); // 500 ms
            } catch (Exception e) {
                // Handle exception here.
            }
        }

        // Read results
        try {
            ResultsReader reader = new ResultsReaderXml(job.getEvents());

            // Iterate over events and print _raw field
            reader.forEach(event -> System.out.println(event.get("_raw")));

        } catch (Exception e) {
            // Handle exception here.
        }

What can be a cause of this? This code is from Splunk java sdk GitHub page. Token, host, etc. are changed from real to stub due to NDA