Performance & Trace Log Issue

Hi experts,

we face on a model some random bad performance on an one the fly report,

we activate the trace and have targetted the problem on below lines codes :

               2015-05-17 20:06:29,173|TRACE|Performance|FPMXLClient.BPCProxy.MetaData_Data.DataServiceHelper.AxisQueryStream|odub|||||10|Method [AxisQueryStream] start, parameters:

    name = Formation

    parameters = CEX#

2015-05-17 20:06:29,173|DEBUG|Performance|FPMXLClient.BPCProxy.Common.Wcf.TraceOperationInspector.BeforeSendRequest|odub|||||10|Remote call [http://server/sap/bpc/query/Formation/CEX?method=axis] start#

2015-05-17 20:07:58,925|DEBUG|Performance|FPMXLClient.BPCProxy.Common.Wcf.TraceOperationInspector.AfterReceiveReply|odub|||||10|Remote call [http://server/sap/bpc/query/Formation/CEX?method=axis] end, duration = 89.752 s#

2015-05-17 20:07:58,925|TRACE|Performance|FPMXLClient.BPCProxy.MetaData_Data.DataServiceHelper.AxisQueryStream|odub|||||10|Method [AxisQueryStream] end, duration = 89.752 s#

Can somebody helps or has any idea on this issue ?

tks a lot

olivia