on a world ive been working on for about four hours after about 1 minute of entering the world the frame rate drops to about 1 frame per 30 seconds. i havent explored much of the world and its on 6 chunks for render distance, my laptop can handle games like subnautica from medium to high settings.

Are you using other mods then the Dalek mod?

 i used ichuns portal gun mod and JEI and it first happened so i deleted the mod leaving JEI because i had been using JEI since i started the world but the framerate was really low still.