Photoshop lagging to all hell >.<

[JyonnyNovice]

Just an update on this, in case anyone else has a similar problem using an SSD only laptop, and having photoshop lag / crashing issues. I bought an external HDD, really cheap for even a huge 1TB, it solved all my problems. I can use all the GPU features like rotate and the on screen colour eye dropper, can work on huge canvases with many layers and haven't had any crashes and barely any lag.

Definitely better to use an HDD for photoshop scratch disk.