Vue instantsearch not scrolling to correct place after results loaded

I'm trying to save scroll position of vue-instantsearch results in session storage so that when you click on a result and then the back button, the browser returns to that point of the page after the results have been loaded.

Because at the moment, you get returned to a place in the page where you were before, but before the results load, so it's much further down the page.

I thought the Vue mounted lifecycle option was what I needed and I'm doing this:

import algoliasearch from 'algoliasearch/lite';
import { routing } from '@/routing';
import Product from '@/components/Product.vue';

export default {
    components: {
        Product
    },

    data() {
        return {
            searchClient: algoliasearch(xxxx, xxxx),
            routing: xxxx,
            selectedIndex: xxxx
        };
    },

    computed: {},

    methods: {},

    mounted: function () {
      this.$nextTick(function () {
        window.scrollTo({
            top: sessionStorage.scroll, // this is set elsewhere
            left: 0,
            behavior: 'smooth'
        });
      });
    }
}; 

But even with that, after clicking back from a search result, you still end up near the bottom of the page.

Is mounted not what I need?