Depends how many people you are following. If you are an "influencer" that follows less than 5 people, it is very smooth. If you're a pleb following hundreds or thousands, it has some jitter at times as content loads. Ive mentioned to nostr:npub1hte85nxymfyez0nlmmxf287nh9cujfuetxhk9vptwcdqg0pn8pxqxasw3d and hes got his team working it and some other related issues in iOS, but promising that an update scheduled for this weekend may resolve it.