Strange behavior of light with tilemap

Many many lags…

The situation is like this, I created a tileset and added the behavior of the light obstacle and the platform to it. Then I assembled a map from the tiles and added the built-in GDevelop light sources.

I started the games and found that it became unbearably laggy, and everything about the tilemap became too bright.

After turning off the light obstacle behavior, the game stopped lagging, but everything is still too bright.

And so… as I understand it, the problem here is that the tilemap is considered a single large object.

How do I fix it? Is it possible to turn off the lighting of the tilemap? Or should I throw out the light built into the engine and mess with my own? Or should I use an external tilemap instead of the usual one?

I want to use these convenient tilemaps and this quite reasonable lighting at the same time and without such anomalies.