Text Scroll Lag

I’m currently editing a ~800 line CSS file in Nova 12.1 (650718) on my M1 MacBook Pro 32GB and I’ve been noticing lag and stuttering when scrolling the file. I opened the same file in BBEdit and Code, both of which had no issue scrolling through the file.

Any extensions installed, although probably not running on a scroll? I thought I saw some odd scrolling at one point when performing diff’s but haven’t noticed it of late and regularly edit files with > 10K lines.

I’ve only got Liquid and Text Tools installed, and unfortunately disabling/uninstalling them has no impact on the scroll lag.

I just tested on my M1 Pro 32GB (11GB free) with a 2K CSS file and loads of extensions and scrolling was smooth. Do you have a video you can share? Can say I can help, but I’m sure the Nova DevTeam would find it useful.

I suspect the problem is related to the particular CSS you’re using, and not to the length of the file.

Nova’s CSS parser has problems with certain items, such has :has(), :not(), and aspect-ratio.

@waynel yeah, I’m pretty sure that’s the problem as I tend to use them a lot.