Hi, I started my business in sole proprietor 2 years ago and now my profit is forecast will be around 200k-500k. I found that sole proprietor tax rate is higher than sdn bhd.

Question:
1)Should I move to sdn bhd to avoid too many tax? or stay in sole proprietor?
2)Any idea to avoid tax(legal way).
3)My business is selling software online, I found from article that "Foreign source income remitted into Malaysia are exempted from tax.", that's means I'm exempted from tax? since I'm purely earn from oversea.
4)I heard IT company can be exempted from tax as long as it's MSC status, so does this means I have to apply for sdn. bhd and apply for MSC status?
5)Is there any hidden disadvantage when moving to sdn bhd?