useSWRInfinite is slow

[GodsonAddy]

I'm using useSWRInfinite in a project using it for cursor pagination and it's very slow in fetching data compared to useSWR. Is there any reason why? And is there a solution to it? Maybe I'm doing something wrong.

  const getKey = (pageIndex, previousPageData) => {
    if (previousPageData && !previousPageData.notes) return null;
    if (pageIndex === 0)
      return `/api/posts?limit=${pageLimit}`;

    return `/api/posts?cursor=${previousPageData?.nextCursor}&limit=${pageLimit}`;
  };

  const { data, size, setSize, isLoading, mutate } = useSWRInfinite(getKey);