Furniture and Furnishings - Help on stablizing a dining table

I have this round dining table I bought from someone and I'm pretty sure it's from Ikea. It's on my carpet but moves so much! The legs are like silver plastic with its top in a circle and square on the inside for support for the glass top. Is there any way I can make the table not move/wobble so much? It's screwed in as tight as possible. I'm thinking it may have to do with it being on the carpet? Or should I just get a another/new table? Thanks for any suggestions and have a great day!

I use a very non tech way and maybe someone has a better suggestion, but I just get a small sliver of wood or cut out a thick piece of cardboard and stick it under the leg that's short. Simple but effective. :D