Best Tire Combination For Sniper Mx - Better Handling

Guys, I just want to ask for a recommended tire combination (Aftermarket tires) that is good for sniper mx and would add up better handling..

my current tire is 90/80-17 Corsa S123 and 100/70-17 IRC stock tire.. is my front tire too big? I'm planning to change my combination to 80/80 F and 90/80R,, is this okay?

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