Editor - How to use PHPStorm with low-configuration notebooks

4g memory, win10x64, 2nd generation i5, mechanical hard drive. Have been using it for over 4 years.
How can I use phpStorm smoothly with such a notebook?

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4g memory, win10x64, 2nd generation i5, mechanical hard drive. Have been using it for over 4 years.
How can I use phpStorm smoothly with such a notebook?

Enable energy saving mode:

If the energy-saving mode is still sluggish, it is basically hopeless - you can only consider upgrading the hardware (changing to a larger memory or an SSD are good choices, but it is estimated that it is easier to change the memory on a laptop)

If the performance is smooth after turning on the energy-saving mode, you can consider turning off the energy-saving mode and then try lowering the highlight level:

By the way, this interface is clicked here in the lower right corner:

Change to SSD

SSDs are not expensive now, 120GB costs only four to five hundred.
If you want to keep the mechanical hard drive, you can consider removing the optical drive and buying a hard drive bracket for the optical drive.
In this way, you can install two hard drives on the computer, the SSD installs the system and software, and the mechanical hard drive stores data.

By the way, upgrade the memory, Jetbrains’ software is very memory-hungry