CitySample modification

Hey! I’m using UE5 to present a bus model in a uni course. Is there any way to make CitySample modifiable to load faster, run smoother etc? I’m going to drive the bus around two city blocks in the small city, and maybe some on the freeway, but I should be able to record three different sequences and then stitch them together. If that is not possible maybe someone here has some tips of other pre-made worlds?

Running rough (around 20-40fps with major stutters) on a rtx 3070, i7-10700, main limit is the 16gb ram and 8 gb vram that fill up so fast. Is it possible to reduce the amount of assets loaded? Something like draw distance and maybe unload rooftops, etc? I have already turned down the screen resolution.