Newbie attempting to make a rocket thrust flame - looking for assistance

Hello! I’ve been following this tutorial

While i was able to adapt it to blender 2.93.4 I wish to render it in eevee rather than cycles like shown in the video. however plugging in emissions to volume in eevee creates a highly pixelated and formless cloud rather than the nice effect shown in the video. is there an alternate way I can achieve this effect in eevee?