head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Pure Mechanics
A demanding souls-like won by perfect-guard timing and weapon assembly.

Execution · Pure Mechanics
A bullet-grazing shoot-em-up about leveling by skimming enemy fire as closely as possible.
Lies of P leans Execution (Pure Mechanics); Psyvariar Delta leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Lies of P
Perfect-guard timing window punishes errors
Psyvariar Delta
Grazing bullets at the edge of death defines mastery
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Lies of P
Scripted bosses, no adaptation
Psyvariar Delta
Enemy fire is scripted, not adaptive
Psyvariar Delta leans a little harder on variance, though the gap is small.
Lies of P
Minor weapon assembly variance
Psyvariar Delta
Patterns are fixed and memorizable
Lies of P leans a little harder on optimization, though the gap is small.
Lies of P
Weapon assembly and P-organ builds reward planning
Psyvariar Delta
Buzz-chaining routes and leveling strategy reward planning
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.