If the average annual increase is 10% for bitcoin, then it is certainly still an asset that provides good returns compared to bank deposits. If bitcoin is still supported by sound fundamentals and its real use cases are increasing, then 10% is still worth considering instead of burning it on altcoins.
On the other hand, I might cut my investment budget if this pattern is confirmed. I will diversify into several assets that also provide the same return percentage, or it could be lower with low risk too. But anyway, I hope that such a pattern will not really happen to bitcoin.
In the stock exchange market, there are assets that rarely could give 2% to 4% ROI per annum. So for Bitcoin to give such a return then it's a good asset to invest in right now. We shouldn't be expecting 100% or 50% return from Bitcoin every year. That is not how it is designed. From past event it has done a lot more better so if the pattern changes now then its more for the greater good. It will give more opportunities to people like me to be able to afford some fractions of it before it goes higher than this.