zink: fix perf for hires texture apps
when texture size goes up, so does vram usage, and so we need to avoid our failsafe unit test stall from triggering in normal usage
yields 30-40% perf in unigine benchmarks on extreme settings
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when texture size goes up, so does vram usage, and so we need to avoid our failsafe unit test stall from triggering in normal usage
yields 30-40% perf in unigine benchmarks on extreme settings