JDeveloper can work without tuning, but tuning is worth looking at for when you are looking at big enterprise applications that have many projects with source control and more than one team member.
In order to tune JDeveloper, perform the following steps:
jdeveloper. There are two files that you want to change: the first file is
AddVMOption –Xms AddVMOption -Xmx
You may want to increase these values if they are very low, for example, if you have more than 4 GB of RAM, you should ...