[LibGdx] Massive fps drop when loading more than 1 texture.

Hello, JGO!
I have created world. World size is 250 * 250 tiles and tile information is stored in 2D object array.
At first i was generating randomly 2 tiles - dirt and empty tile. There was no problems and had like 60fps without culling.
After that i created another tile(stone) and then it started to lag(~5fps). If i generate 250x250 with only dirt tile/stone tile then fps is normal.

Writing this up i remembered that it might lag, because there is 2 different Tile objects now, but why would it lag?

If you need any code, say it. And if you don’t understand me, i will try to tell this differently.