Sims 4 graphics gaming laptop help

ndnvtd8at77z  I don't think more RAM would help unless you're running a lot of other apps at the same time.  That's an easy test of course.  Faster RAM could help in theory, but your laptop's motherboard specifies the speed at which memory can run, and I doubt this setting is user-accessible.

As long as you have an SSD in the laptop, which you should, a faster SSD isn't going to make much difference, if any.  Plenty of games that are more demanding than Sims 4 load just as quickly on the slowest type of SSD as the fastest, and you wouldn't have the slowest type of SSD anyway.  If you mean more storage space, that also won't help unless you have less than about 10% of the total storage free at any one time, so about 50 GB in your case.  Even then, it's not certain that it would make a difference—you might not get any actual slowdown until you dropped to more like 10-15 GB free.

You could absolutely upgrade the SSD if you wanted, but that would require reinstalling the OS and critical drivers and also storing your important data elsewhere during the process.  If the laptop has a second SSD slot, you could simply add another drive, but again, it likely wouldn't help unless you're running out of space on the primary drive.  And the connection to the secondary drive might be slower anyway, depending on how the laptop is wired.