Data retrieval is taking more time with huge amount of data. Details to reproduce the issue are below:

APIs Used:

$ curl -k -H "Content-Type: application/json" -H "Authorization: Basic Y3BzdXNlcjpjcHNyMGNrcyE=" --request POST http://localhost:8883/cps/api/v1/dataspaces?dataspace-name='E2EDEMO'

$ curl -H "Authorization: Basic Y3BzdXNlcjpjcHNyMGNrcyE=" --request POST 'http://localhost:8883/cps/api/v1/dataspaces/E2EDEMO/schema-sets' --form 'file=@"ran-network.zip"' --form 'schema-set-name="ran-network"'

$ curl -H "Authorization: Basic Y3BzdXNlcjpjcHNyMGNrcyE=" --request POST 'http://localhost:8883/cps/api/v1/dataspaces/E2EDEMO/anchors?schema-set-name='ran-network'&anchor-name='11''

curl -w "@curl-format.txt" -H "Authorization: Basic Y3BzdXNlcjpjcHNyMGNrcyE=" --request POST 'http://localhost:8883/cps/api/v1/dataspaces/E2EDEMO/anchors/11/nodes' --header 'Content-Type: application/json' -d @ran-network-initial-data.json -i
{
"time_redirect": 0.000000,
"time_namelookup": 0.000026,
"time_connect": 0.000207,
"time_appconnect": 0.000000,
"time_pretransfer": 0.000250,
"time_starttransfer": 0.196365,
"time_total": 16.358302,
"size_request": 251,
"size_upload": 2736105,
"size_download": 0,
"size_header": 304
}

$ curl -w "@curl-format.txt" -u cpsuser:cpsr0cks! -X 'GET' 'http://localhost:8883/cps/api/v1/dataspaces/E2EDEMO/anchors/11/node?xpath=%2fran-network&include-descendants=true' -H 'accept: application/json' -i
{
"time_redirect": 0.000000,
"time_namelookup": 0.000025,
"time_connect": 0.004892,
"time_appconnect": 0.000000,
"time_pretransfer": 0.004989,
"time_starttransfer": 336.465170,
"time_total": 336.961859,
"size_request": 229,
"size_upload": 0,
"size_download": 1044550,
"size_header": 314
}