I'm able to speed up redstone/minecarts/etc... just fine using /tick warp, however, crops seem unaffected. The only way I can get crops to grow faster is by using the vanilla gamerule change for randomTickSpeed.

Do crops still grow at all when using /tick warp? (Test with a large tick warp and a large field for best results)

They do grow when using /tick warp, however, the daylight cycle and crops do not operate at the same speed as the redstone does.

Here's a video of what it looks like for me: https://youtu.be/vic0pK6_e90

I was expecting the crops to look like this: https://www.youtube.com/watch?v=Lt-ooRGpLz4&t=244s&ab_channel=gnembon. The redstone definitely works fine, but crops and the daylight cycle don't?

well, your tick rate from your screen is 20-30ms at times, so the game can only go twice as fast. Crops do grow, just not as fast.

Also the fact that the growth age shows 0 is normal - the server will not send unnecessary updates to save on network traffic.

Oh. Thanks. I don't suppose I can speed it up faster then.