Timings
https://timings.aikar.co/?id=b0040837a1504e4480e68531e6292f1e

Can you provide more information. Have you placed compressed air down? What version of the mod are you using? This isnt a lot of help.

The latest version of the mod.

All that was installed. I'm sorry, of course, I have everything in Russian, maybe you will not understand everything in the screenshots.
https://imgur.com/a/Zs8NB

Does this happen without sponge forge? As I dont usually provide support for it.

"techreborn:techreborn_techreborn.compressedair" is an itemblock for CompressedAir fluid. And this is strange stuff. Block for compresed air is "fluidcompressedair". Players are not able to get "techreborn:techreborn_techreborn.compressedair" in a legit way.

I also did not use it, then the load on the server looks even stranger.

Please remove Sponge Forge, and reopen if the issue is still there.

Unfortunately this is no longer clear, after the server reboot the id of the blocks from the mod has changed to random, the delay has disappeared, but I now have to make a map of the past.

I'll try to put the update you did yesterday. If the problem recurs, I'll let you know.

Please remove sponge forge, and then come back for support.

Without Sponge did not check. I'm only dealing with the server. Perhaps the problem was not with these blocks. In the spawn of the world, a failure occurred and some of the blocks were replaced by others, although the server delay decreased after I removed and then placed the structures that you can see in the screenshots.
If I have any more useful information, I'll let you know. If you need lists of mods and plugins on the server, then I can provide it.