Hi there and welcome!
Hahaha I just posted basically the same info below in another thread. The analog smokers have nooooo insulation.
You may want to buy something like this:
To build a custom insulation sleeve that looks like this:
View attachment 472014
(from this post on SMF:
https://www.smokingmeatforums.com/threads/insulating-a-propane-smoker.112976/)
This should help your smoker retain heat and hopefully help your temp swings.
Meat on a smoker usually only gets as hot as 15F degrees minus your set temp.
So if you want sausage to hit an Internal Temp (IT) in the meat of 153F you would want your smoker temp to be 165F or higher. Most walk up to 170F smoker temp.
If doing wild pork meat or game meat (bear, etc.) you MUST have the meat hit an IT of 165F to kill off the micro parasites they carry so you will have to bring the temp up to 180F in the smoker to hit 165F in the meat. I do this with my wild pork that I hunt and it works fine.
Your biggest issue is that your Analog controller will cause temp swings, so it is never really precisely on the temp you set, it swings around it to hopefully give you an AVERAGE set temp... not good for sausage and bacon making.
Also as mentioned above, the analogue smokers have no insulation which cause issues in holding temps and contribute to temp swings.
For about $150 you can get an Auber PID plug and play controller that would work to hold a much tighter temp for your smoker rather than temp swings.
I hope this info helps :)