Table-A) CPU performance: cmsExp vs cmsExpVG, 11.1.r09; all with gcc11.3.0 and uses SerialOnly RM 
Legend:
cmsExpVG  = cmsExp + Geant4/VecGeom.1.2.1
11.1.r09  = geant4-11-01-ref-09  

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

    209.55    2.04      196.05    1.60     -6.4      1.3        higgs.FTFP_BERT.1400.4
    
#----------------------------------------------------------------------------


Table-B) CPU performance: 11.1.r09 vs 11.1.r08 

Legend:
11.1.r08  = geant4-11-01-ref-08 (SerialOnly RM in app)
11.1.r09  = geant4-11-01-ref-09 (SerialOnly RM in app)

Average (CPU Time)/Event:  11.1.r09 vs 11.1.r08 

#----------------------------------------------------------------------------
#  111r08                  111r09             100*(r09-r08)/r08    sample
#
#  mean      error         mean      error       %diff error
#----------------------------------------------------------------------------

  199.6400   1.6135 	  196.0500   1.6003 	  -1.8  1.1	 higgs.FTFP_BERT.1400.4 

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



Table-C) Total Memory : 11.1.r09 vs  11.1.r08 

#-----------------------------------------------------------------------------
# total           memory     100*(r09-r08)/r08 
# 111r08          111r09        %diff           sample
#-----------------------------------------------------------------------------

  11268.4000 	  11268.5000 	 0.0	 higgs.FTFP_BERT.1400.4 

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