Rubber tree plant

Question

I have repotted my plant and now it’s leaves are growing a lot smaller and slower.

Answer 1

It is common for a Rubber Tree plant to go though a bit of transplant shock. Place the plant in the same location and water the same.
A light fertilizer feeding can help.

https://www.gardeningknowhow.com/houseplants/rubber-tree/how-to-care-for-a-rubber-tree-plant.htm