This isn’t the answer to the question, but photopea.com is pretty much an exact clone of Photoshop that is completely online and free.

What ISP do you have and what country are you in? I have Comcast in the US and do not have this issue even though they are a big and shitty ISP (I even use their modem, but I do have my own router which I HIGHLY suggest).

This looks fantastic!

This is exciting, regardless of what it could be!

Generally exhaust has a smaller impact than other places in the power train, but it definitely has an impact and moreso in a motorcycle vs. a car.

Generally, freer flowing exhaust will make more horse power however if you go too crazy (think open headers) it can decrease low end torque.

For a motorcycle I say go for whatever exhaust you want and you’ll be fine. Motorcycles are high reving small motors that could use the extra air flow from the exhaust