еще может от выделенной ОЗУ под джаву зависеть. In the default_options parameter of mplab_ide.conf, the Xmx option specifying the max heap space (the max amount of memory MPLAB® X IDE can use) is not included. This is because the JRE itself will look at the environment where it is being run and will select an appropriate value. This value is typically 1/4 of the max amount of memory in the system. If you want to allocate a larger value for the max heap size for MPLAB X IDE, you can add -J-XmxVALUE. For example, -J-Xmx4096m will set the upper limit to 4 gigabytes. This will help improve performance when working on large Harmony projects or if you have many projects open.