aalwani I recommend you use 1.5mm wick and you'll have no problem. Bobas is 100% VG if I recall so it's a very thick juice and you should not screw the cone in all the way. To help feeding leave the cone half open. Using the 1.5mm wick it will sit nicely inside the ceramic. I also don't recommend you mod your ceramic unless you have a high speed rotary tool (Dremel) and even then it's a task and a half to open up the slots. The ceramic material is very hard to cut.
Your issue here is to get the right combination of wick and cone opening to feed your Bobas which is a thicker juice.
Thanks captain, i have a rotary tool with 12000 rpm is that enough? I will try everything before modding the ceramic, i will try the half cone open, but i doubt boba will wick on a 1.5mm wick and 1.5 ohm coil.