Optimize the performance of your Shopify store, and increase the sales to 2023, here are a few Shopify tools that you could use:

1. Shopify Email: Make use of Shopify Email to build emails and then send them straight through your Shopify administrator. Make personalized email templates to automate your campaigns, as well as analyze their results to stay in touch your clients and increase sales.

2. Klaviyo: Integrate Klaviyo to your Shopify store to benefit from the advanced capabilities of email marketing. Utilize personalized emails and segment your customers and deliver targeted email messages for optimal conversions and retention.

3. Google Shopping: Sync your Shopify store to Google Merchant Center using the Google Shopping app. It allows you to show your items in Google results pages, Google Shopping tabs, as well as on other advertising channels which will drive traffic relevant to your shop.

4. Facebook Shop: Join your Shopify store to Facebook Shop which allows sellers to market and advertise products on Facebook as well as Instagram. Make use of shopping tags and advertisements for a greater reach and boost the number of sales.

5. Storefronts with Shopify: If own a physical shop or intend to be a part of offline events, you can use Shopify POS for seamless connect your retail operations to your store online. Track inventory, handle transactions, and offer the same user experience across different sales channels.

6. Shopify Scripts: Utilize Shopify scripts to design individual discounts, loyalty programmes along with other marketing strategies. Implementing dynamic pricing, discount coupons at the cart level can attract customers to buy more.

7. Shopify Flow: Automate certain jobs, such as ordering processing, or managing inventory with Shopify Flow. The streamlining of backend operations can help cut down on time and energy which allows you to focus on selling and providing a great customer experience.

8. SEO Manager: Optimization of your Shopify shop for SEO with the built-in SEO Manager. Modify the page’s title, meta description and URL Slugs to boost your rankings in organic searches and increase traffic to your site.

9. Yotpo Reviews: Integration of Yotpo Reviews to gather reviews of customers, and then display them as scores on your product’s pages. Positive reviews increase confidence and inspire potential buyers to purchase.

10. Social Media Integration: Use integrations with social media platforms such as Instagram Shopping or Pinterest Buyable Pins to showcase your items directly through these platforms. Utilize the social media channels to highlight your items, engage prospective customers and increase visitors to your Shopify shop.

Keep in mind that, along with these tools, employing successful marketing strategies, improving the product catalog, providing exceptional customer support, and constantly reviewing and evaluating the store’s performance is essential to increase sales by 2023.