Some people seem to forget, motorcycles used to be made without swingarms... and yet they were still roadraced.
And they actually can be cornered quiet hard, so long as track is relatively smooth. When there is a lot of irregularities and bumps , then you have more need for suspension .
Some people prefer twisty roads all day.. others are fine on interstates for most riding. You build the bike according to YOUR Needs..
100 mph on Interstate would not be a problem with that bike. Lowered bikes have one thing going for them, much lower center of gravity..... all bikes by nature want to fall over, we keep them upright..... keeping a lowered bike upright is easier..