-Xquickstart

This option causes the JIT compiler to run with a subset of optimizations.

-Xquickstart
The effect is faster compilation times that improve startup time, but longer running applications might run slower. When the AOT compiler is active (both shared classes and AOT compilation enabled), -Xquickstart causes all methods to be AOT compiled. The AOT compilation improves the startup time of subsequent runs, but might reduce performance for longer running applications. -Xquickstart can degrade performance if it is used with long-running applications that contain hot methods. The implementation of -Xquickstart is subject to change in future releases. By default, -Xquickstart is disabled..
Another way to specify a behavior identical to -Xquickstart is to use the -client option. These two options can be used interchangeably on the command line.