Table-A) CPU performance: cmsExp vs cmsExpVG, 11.1.r05; all with gcc11.3.0 and uses SerialOnly RM 
Legend:
cmsExpVG  = cmsExp + Geant4/VecGeom.1.2.1
11.1.r05  = geant4-11-01-ref-05  

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

    209.99    1.59      199.59    1.92     -5.0      1.3        higgs.FTFP_BERT.1400.4

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


Table-B) CPU performance: 11.1.r05 vs 11.1.r04 

Legend:
11.1.r04 = geant4-11-01-ref-04 (SerialOnly RM in app)
11.1.r05 = geant4-11-01-ref-05 (SerialOnly RM in app)

Average (CPU Time)/Event:  11.1.r05 vs 11.1.r04 

#----------------------------------------------------------------------------
#  111r04                  111r05             100*(r05-r04)/r04    sample
#
#  mean      error         mean      error       %diff error
#----------------------------------------------------------------------------

  198.3300   1.9580 	  199.5900   1.9220 	   0.6  1.4	 higgs.FTFP_BERT.1400.4 

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


Table-C) Total Memory : 11.1.r05 vs  11.1.r04 

#-----------------------------------------------------------------------------
# total           memory     100*(r05-r04)/r04 
# 111r04          111r05        %diff           sample
#-----------------------------------------------------------------------------

  11244.0000 	  11232.7000 	-0.1	 higgs.FTFP_BERT.1400.4 

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