PDSCH reserved RE for CSI RS in NR

Hi

I have reserver RE for CSI RS as below

simParameters.CSIRS = nrCSIRSConfig;
simParameters.CSIRS.CSIRSType = {'nzp','nzp','nzp','nzp','nzp','nzp','nzp','nzp'}; % 'nzp','zp'
simParameters.CSIRS.RowNumber = [1,1,1,1,1,1,1,1]; % 1...18
simParameters.CSIRS.NumRB = simParameters.Carrier.NSizeGrid - simParameters.CSIRS.RBOffset;
simParameters.CSIRS.CSIRSPeriod = {[4 0],[4 0],[4 0],[4 0],[4 1],[4 1],[4 1],[4 1]};
simParameters.CSIRS.SymbolLocations = {4,5,6,7,4,5,6,7};
simParameters.CSIRS.SubcarrierLocations = {0,3,0,3,0,2,1,2};
simParameters.CSIRS.Density = {'three','three','three','three','three','three','three','three'};

disp(['Number of CSI-RS ports: ' num2str(simParameters.CSIRS.NumCSIRSPorts) '.'])

[ind,info_ind] = nrCSIRSIndices(simParameters.Carrier,simParameters.CSIRS);

simParameters.PDSCH.ReservedRE = ind;

When i dont reserve RE for CSI RS i see TPUT of ~47mb

Now i reserve RE's for CSI RS TPUT is still ~47mb

Well i was expecting TPUT will decrease a bit since now some RE's are not available for PDSCH when CSI RS is used

Can please help how to analyse