WordPress Website Update and Optimization

Need a WordPress website update for a site that hasn’t been maintained for a while and is running slowly. The work includes: 1. adding a new contact form with anti-spam protection 2. creating two new pages 2a. a knowledge centre for articles that will be uploaded (articles to be provided as a separate job once available) 2b. a calculators page (actual calculators will be an embed snippet) 3. adding an Apply Now button that links to a lead generator. 4. improve site performance as it is running very slow - remove old plugins, perform any updates required and ensure the site remains functional and user-friendly after the update. 5. Re-link instagram 6. update phone number in banner 7. check fonts are consistent throughout and that logos are displaying correctly There is also further work that will be required in a separate job once my branding update is finalised in a few weeks - update branding colours and fonts, update pics, updated content to improve SEO/SGO. Looking to establish a relationship with a developer who I can rely on for future ongoing work. Need the speed issue corrected ASAP so that would be the priority please and the first piece to action. so looking for someone who can take on the job immediately. Thanks!