Need Help in suiteCRM for getting get_entry_list response


I got below error while trying to get response for get_entry_list method in suiteCRM when passing value of 100 for fetchcount argument. I have mentioned request details below.

if i passed value 10 means ,response getting properly. But this is taking too much time if we need to fetch more than 100 records.

I need proper solution for getting get_entry_list response fastly.

Error: {“Client found response content type of ‘text/html; charset=UTF-8’, but expected ‘text/xml’.\r\nThe request failed with an empty response.”}

Function with Argument : client.get_entry_list(sessionId, moduleName, WhereClause, OrderBy, offset_pos, selectedFields, linknametofields, fetch_count, deletedResult, false);