An installation of a plugin does not, and cannot, instantly or magically increase rankings in search engines. At the end of the day, Rank Math is simply a SEO plugin or software. Using it correctly will determine how effective it is. Those who tell you that installing a plugin will improve rankings over night have another agenda or are just after your money. Although it has a huge impact on SERPS, it takes much more than just on-page optimization to rank well in search engines such as Google.