Ram memory!

hi forum,just checking my ram of my computer and i see that i have a 7.9 gb ram is that the reason that my sync is sooo slow? when i let the wallet run its thing and i check what ram use is @time of when wallet runs it goes up to 6.2 ram about 77% of the max ram sometime it goes to 5.8ram for few minutes then back up 6.2ram most of the time never exceeds its limit of 7.9ram but now for 3 days didnt got my sync up to 100% 0.35% is left what you guys think??? upgrade my computer to 16gb or 32gb to sync at lightning speed my walletšŸ¤”
thanks. cardano no 1