Tweak vagrant config a little bit to optimize memory/cpu [skip ci]
Tweak vagrant config a little bit to optimize memory/cpu [skip ci]

sriprasanna/RapidFTR,mwangiann/RapidFTR,sorashiro/RapidFTR,tomclement/RapidFTR,sferik/RapidFTR,sferik/RapidFTR,ctumwebaze/RapidFTR,tomclement/RapidFTR,ctumwebaze/RapidFTR,austiine04/RapidFTR,sferik/RapidFTR,timothyakampa/RapidFTR,sorashiro/RapidFTR,rapidftr/RapidFTR,austiine04/RapidFTR,austiine04/RapidFTR,sriprasanna/RapidFTR,timothyakampa/RapidFTR,ctumwebaze/RapidFTR,tomclement/RapidFTR,tomclement/RapidFTR,timothyakampa/RapidFTR,rapidftr/RapidFTR,rapidftr/RapidFTR,austiine04/RapidFTR,mwangiann/RapidFTR,sriprasanna/RapidFTR,sorashiro/RapidFTR,ctumwebaze/RapidFTR,rapidftr/RapidFTR,mwangiann/RapidFTR,mwangiann/RapidFTR,timothyakampa/RapidFTR,sorashiro/RapidFTR,sriprasanna/RapidFTR