I hope all is well. Traditionally, the performance issues that we attempt to address when deploying/using a database server arise from the limitations of the disk subsystem and our ability to access information quickly enough to allow for acceptable performance under load.
Databases can be heavy users of the disk(s) in/on the system(s) where they are installed, and as a result you need to plan for the type of usage that you are likely to experience over the lifetime of the database and it's usage.
The standard approach is to separate the data and logging functions of the database by installing and configuring them to use separate physical/virtual drives. This allows the system to use 1 drive for accessing/storing/processing data and any requests/needs around those activities, and a distinctly different drive for the logging that will take place as part of the use of the database.
If you choose to further optimize your configuration, you can decide to deploy with SSD drives instead of traditional HDD drives, as these will allow for much better read and response times for writes.
There are additional issues to consider, such as the amount of RAM (memory) that you are allocating to the VM/machine that will run the database(s). The simple rule is the more RAM, the better the performance, BUT the real secret is to understand that you need to have enough RAM available to load the entire database into memory so that it is able to run faster.
In addition, the real trick ultimately to database optimization is the data itself and the queries used to access it, along with the structure(s) used to store and work with the data across the database (the tables).
You can take a look at the URL's below for some basic introductory guidance on how to examine and optimize your data and queries as well as longer term performance monitoring to ensure everything stays healthy once you optimize:
How to optimize SQL Server query performance:
How to Check and Improve Server Performance With SQL Query Optimization and Tuning:
SQL and Database Performance Tuning Guide and Checklist: Expert Tips:
Good Luck !!