Slow responding tinder match, should I quit replying?

I matched with a guy that I have on facebook. We’ve been messaging 3-4 days about 2-3 messages a day. He’s a little slow of a replier. I see him on fb all the time but he take up to minimum 3 hours to reply but usually 7-8hrs. We’ve only talked on tinder.

i can't really tell if he’s interested or not his messages are very serious even though his bio says he’s humorous. I’ve tried flirting a little but he doesn’t really flirt back.

is he just being nice by replying? Should i give up or keep messaging? The way he talks sounds bored
Slow responding tinder match, should I quit replying?
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