Looks to me to be about a 2007 BF20D.
Not sure about the performance as fiberglass hulls can be very heavy depending on manufacturer and build date.
If you want to "tune it up" you need to know that the carburetor on these can be problematic if not taken care of properly.
These carbs get mineral scale built up in their tiny passages. However, that typically manifests into hard or no start. You don't mention hard start. But...be aware that you NEED to drain the fuel from the float chamber any time you won't be using the outboard for more than 2 or three weeks. Carb draining keeps these carbs working tip-top almost indefinitely. Find the drain screw and use it.
Also, this engine comes equipped with a black, rubber looking thingy attached to the engine oil dipstick called a "fuel chamber". (The 9.9 didn't have this device)
The fuel chamber acts as a water trap even though that wasn't Honda's reason for putting it on the engine. It needs to be removed periodically and completely drained of all liquid. This too can cause starting and running issues if the water leve in itl gets too high.
Use a spritz of WD40 on the dipstick tube to aid in removing and be careful not to break the tube by being too rough.
Beyond those items would be a cylinder dropout test to make sure both cylinders are contributing evenly. The engines can run amazingly smooth on only one cylinder and many people can't discern the difference.
Unplug each plug wire and reinstall to make doing it while the engine is running much easier and quick. Like the dipstick tube, a little lube helps here. Only this time use a small amount of dielectric tune up grease smeared around the inside of the sparkplug boot.
Start the engine and increase speed to about 500 rpm above idle. Using a pair of DRY gloves or a DRY shop towel, remove each plug wire momentarily, one at a time and note any changes in how the engine runs. If it stalls immediately with one cylinder not firing, you have a weak or non running cylinder in it's companion.
After that bit of research you can explore engine valve timing and valve adjustment. It is not uncommon to find that these engines have never had a valve lash adjustment done on them.
Good luck and ask as many questions as you like.