@wisefly Ahh so I guess you're using ASB financing. To be honest I will never recommend loaning money for investment especially in this recent years.
By using dividend to roll back money do you mean using your dividen to pay the monthly loan? Not especially a wise choice because you lost compounding benefit there.
With BNM lowering OPR you should enjoy slightly lower monthly payment which hopefully could cover your lost although realistically, I don't think ASB performance would improve much this year.