It should be much more responsive now, running fully on all four cylinders if all anomalies corrected.
These, smallest capacity four, have remarkable ability to mask quite significant combustion problems to those unaccustomed to them. Even if you are very close, adjusting the timing for example, they don't broadcast much in way of problems that may be internally troubling the clean running.
The engineering integrity of bottom end, barrels and head, in casting size and rigidity, keeps them very quite even with very poor running. They soldier on remarkably with all sort of problems in firing.
Should be a lot more eager to spin easily now, then to give a better ride and heat management for the combustion.
Hopefully, it'll positively sing along now.
The oil will likely show a measure of fuel dilution after running on three cylinders intermittently, a change probably good from that aspect along with other running in consideration.
