it might well go faster at startup
thats because when it starts windows looks at what youve got and makes a
few key decisions about performance and how to handle starting programs.
but generally you have a good grasp of whats going on.
its clear that your cpu is aimed at a more compact system anyway
being effectively the next generation of netbook cpu.Noticably better.
if you add 1gig it will go noticably faster but only at boot time, maybe slightly
quicker to launch an application when you click to start it.
if you add another 1gig you might not notice any change at all.
sometimes windows is a bit naff at noticing you have upgraded
it doesnt monitor this situation at all so you may have to manually
set the hard drive/virtual memory performance settings each upgrade.
if your pc came with less than it has fitted now, you may be able squeeze
some more out of it by checking virtual memory settings
some notes:
an upto date AV program may well SLOW a system that has less than 1.5gb ram
this value is gradually increasing. It leapt from about 0.7gb to 1.25gb about 2yrs ago
we are due another leap up soon. The reasons why are several. But the trend is
the same, a slow gradual increase followed by sudden increments.
This is the same for windows.
You currently still have enough and i would guess that you will be ok for 6 months
but sooner or later the AV is gonna want its slice of the memory increased.
so just check your settings and wait a while longer.