Low memory setting on phoenix client leads to perf degradation

16:30:37,833  INFO [162596193@qtp-226773415-1526] HBaseTimelineMetricStore:156 - Query: Condition{metricNames=[cpu_num, load_one, proc_run], hostname='null', appId='HOST', instanceId='null', startTime=1
426519751, endTime=1426523351, limit=null, grouped=true, orderBy=[], noLimit=false}, startTime: Mon Mar 16 16:30:26 UTC 2015, Query end time:  Mon Mar 16 16:30:37 UTC 2015, seconds taken: 11