having similar issues with brushes being so laggy as to be unuseable in photo 2 version 2.0.3
using an 14" M1 macbook pro with 8 cores cpu
14 gpu and 16gb ram - running ventura 13.0.1
is 144 x 96 inch canvas with biggest brush setting (4096 px) just too big?
none of the adjustments suggested from performance related issue post seem to effect the process
switch from 16 bit color profile to 8 helped somewhat but didnt really make a dent
the first photo shows when the brush is first applied but nothing shows up yet - it can can take like 15 seconds or more - and shows the cpu load 749%
second photo is in idle after some marks were made
i am just getting started with digital painting so please i am sorry for not knowing if this is an absurd maneuver to even attempt
thanks to all of you on these forums!
elias