Is my computer fit for digital painting?

[Amadís]

Hi, I have a 2017 MacBook Pro 8 GB, 2.3 Ghz and I'm trying to do some digital painting with it, but Photoshop lags or even crashes. I've been having trouble even with 30 x 30 cm 300 dpi formats. My guess is the computer is too slow to handle this, am I right?

[Amadís]

Thanks Rayek! I had been thinking about trying Affinity Photo, but I'll also try the software you're suggesting.