Wordpress Homepage Maintenance & PHP- Updating, Template-Customization, (Speed)-Optimization

Job ID: 35593210

Budget: €250 – €750 EUR

Hi there,

I need help with some maintenance work for a wordpress website https://whitehorse-international.com/.
Currently I am running a rather old PHP version on the web server (PHP version: 5.6.40 - PhpMyAdmin,
Apache- Server, PHP extension: mysqli), which I can't update without destroying the site, because the wordpress template won't work anymore. There are a couple of compatibility issues with certain plugins. Some plugins can't be updated without updating Php.The template is like 9-10 years old and not maintained, many functions are already disabled due to a website hack. See https://themeforest.net/item/spectro-responsive-multipurpose-wordpress-theme/5315742
So after updating Php, the template needs to be customized, so that it will work properly again.
Finally I need some speed optimization of the site, I believe too many unused Plugins are loaded in the browser and leads to slow response times, which Google criticises and therefore gives me a bad google ranking and crawlers stop visiting the site.
What else you need to know: Most important Plugins are the WP Job Manager Plugin which synchronizes via AllImport and a cronjob from an xml and WPML (German & English content)

So the milestones will be:
1. Backup of Website
2. Updating PHP
3. Customizing Template / Site, so that Wordpress Version and activated Plugins can be updated
4. (Speed)-Optimization for mobile and desktop to +90 Performance Score (see status quo, currently like 50/70 at https://pagespeed.web.dev/report?url=https%3A%2F%2Fwhitehorse-international.com%2F&hl=EN or screenshots)
Related categories: PHP JavaScript WordPress CSS Page Speed Optimization