Hmm, 10x is actually pretty small IF it was the past. These days I'd assume that Bitcoin growth is going to decrease exponentially compared to the past, so the 1000x you'd see in the past would go down to 100x, 10x down to 2x and lower even. It is for a couple of years but I don't think it'd be feasible at all with the market (unless we see a 10x the next year, which I highly doubt) so you might need to short every now and then and try to maximize the small pumps/dumps of the market.
As for investing Bitcoin itself, no I don't think a 10x is possible at all. It's already a risk in itself so I don't think you need to go beyond that, not to mention I don't think it can even be used to invest on a market stock/asset.
I agree with you that that bitcoin price over the years has been reducing its volatility rate which means that the excessive increase enjoyed in the past is no longer going to be the case here again. If we look at the pumps even after halvings in the past you will easily see 10x movement but not now