If a guy wants to go all in quickly, is it a red flag?

So I’m in a relationship with a guy (I have known him a while but we just got together ) he was dating a girl but confessed he had strong feelings for me and we got together and he dumped her. Now he is moving at a fast pace … so wants me to go on holiday with his parents in 2 months etc

should I be worried about the pace here?

If a guy wants to go all in quickly, is it a red flag?
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