I have the following case. A client interested in revamping the layout of his site developed in Joomla. The site in question appears on the first page by doing a search for the main keyword related to the company's niche, and because of that the customer is getting a lot of feedback. Initially I thought of developing a new website using the WordPress, then changed my mind and decided to keep Joomla, because that way I only need to create a new template. After analysis it occurs that the URL's are not friendly, so decided to make changes accordingly but not sure if it will help in improving the rankings or will have a bad effect?
I thank all for the help in advance!