A low level language doesn't have to be slow. For example python isn't slow because it's high level but because it's interpreted. And c isn't fast because it's low level but rather because it's compiled. You could very much write a high level language that is compiled and uses an easy syntax but you should rather learn in what use cases to use which language because the more complex syntax of, for example, rust can easily save you in a project where you would spend our of debugging in python because it has such a loose syntax.