Table-A) CPU performance: cmsExp vs cmsExpVG, 11.1.r03; all with gcc11.3.0 and uses SerialOnly RM 
Legend:
cmsExpVG  = cmsExp + Geant4/VecGeom.1.2.1
11.1.r03  = geant4-11-01-ref-03  

Average (CPU Time)/Event: cmsExp  vs cmsExpVG
#----------------------------------------------------------------------------
#  cmsExp              cmsExpVG        100*(cmsExpVG-cmsExp)/cmsExp  sample
#
#  mean      error     mean      error    %diff    error
#----------------------------------------------------------------------------

   209.72    1.67      198.1     1.99     -5.5      1.3        higgs.FTFP_BERT.1400.4  

#----------------------------------------------------------------------------


Table-B) CPU performance: 11.1.r03 vs 11.1.r02 

Legend:
11.1.r02 = geant4-11-01-ref-02 (SerialOnly RM in app)
11.1.r03 = geant4-11-01-ref-03 (SerialOnly RM in app)

Average (CPU Time)/Event:  11.1.r03 vs 11.1.r02 

#----------------------------------------------------------------------------
#  111r02                  111r03             100*(r03-r02)/r02    sample
#
#  mean      error         mean      error       %diff error
#----------------------------------------------------------------------------

  199.9000   1.8974 	  198.0900   1.9936 	  -0.9  1.4	 higgs.FTFP_BERT.1400.4 

#----------------------------------------------------------------------------


Table-C) Total Memory : 11.1.r03 vs  11.1.r02 

#-----------------------------------------------------------------------------
# total           memory     100*(r03-r02)/r02 
# 111r02          111r03        %diff           sample
#-----------------------------------------------------------------------------

  11200.5000 	  11201.0000 	 0.0	 higgs.FTFP_BERT.1400.4 

#-----------------------------------------------------------------------------