Aternos is being too more laggy than on March

What has happenee to the quality of Aternos?

On march, I played Aternos on Forge 1.14.4 with 35 mods (25 mb) and we played a lot and the server went very good with a render distance of 10 chunks, with almost no lag.

Today, I've started a new server on Forge 1.15.2 with a lot of problems.

I had 40 mods (25 mb) and the server always crashed. I needed to quit 10 mods and the server has now 30 mods (22 mb)

This server goes with a render distance of 5 chunks and its too laggy (when breaking a block there is like 0,5 seconds of delay) and it's unplayable. On march, the other server took 5 minutes to open. Now, 9 minutes. What has happened?

The two servers have only Forge

How can I have paper and Forge? Also I want to change the rendering chunks from5 to more but I cant

And the server sometimes restarts by the face

I can't. When I try to change more than 5 an X apperars, and automatically changes to 5 every timee

And why does it take to start more now than on March? I had more mods on March than now and it started in 5 minutes, now 9

Start time