Sometimes it take months before reviewers are allocated! However, please read a paper that I wrote, viz. “Writing for Publication for Students and University Staff”, which provides some more insight into the review process, discusses the review length of time, and suggestions of what authors could do. The paper is freely available on ResearchGate: https://www.researchgate.net/publication/342549330_Writing_for_Publication_for_Students_and_University_Staff.