Xilly
FPS and 1% Low Optimization Service
For PCs that lose performance during fights, endgames, crowded maps, or other real gameplay even when the average FPS counter looks acceptable.
Fortnite FPS optimization Call of Duty FPS optimization Gaming PC stutter fix PC performance testing methodology
Who this page is for
Best for players whose PC looks fine on paper but drops hard in fights, endgames, busy maps, or high-refresh competitive matches.
- This page focuses specifically on frame production and consistency. Broader system delay belongs on the latency pages; full platform tuning belongs on the main service pages.
Average FPS is not enough
A high average can hide bad lows. The system needs to deliver frames consistently, especially when the game is CPU-limited or when background work interrupts the render loop.
- 1% lows and frame-time stability reviewed
- CPU and GPU bottleneck behavior checked
- Game settings matched to hardware headroom
- Background load reduced before deeper tuning
Find the limiting side first
CPU limits, GPU saturation, memory latency, shader compilation, thermal throttling, and background interruptions require different fixes. Lowering every graphics option can make a CPU bottleneck more obvious without improving the lows.
- CPU-bound and GPU-bound behavior separated
- Utilization, clocks, thermals, and frame times compared
- Settings changed around the actual bottleneck
- Repeatable scenes used where the game permits
Game-specific FPS tuning
Fortnite, Valorant, and Call of Duty do not respond to the same settings. The right tuning path depends on the engine, bottleneck, monitor, driver stack, and whether the goal is image quality or competitive response.
- Fortnite Performance Mode and endgame consistency
- Valorant CPU throughput and high-refresh behavior
- Call of Duty VRAM, shaders, upscaling, and CPU limits
- Frame caps chosen around stability and latency goals
How improvement is checked
Before-and-after numbers only mean something when the resolution, render settings, test scene, and system state are comparable. Xilly documents the relevant baseline and repeats the same workload where possible.
- Same resolution and graphics settings
- Average FPS considered with lows and frame times
- Outlier runs repeated instead of cherry-picked
- Longer gaming tests used when a benchmark cannot prove stability
Frequently asked questions
Can you guarantee a fixed FPS gain?
No honest service can guarantee a fixed number for every PC. Xilly tunes the system to remove wasted performance and improve consistency.
Is FPS optimization the same as BIOS tuning?
No. Core FPS optimization covers Windows, BIOS, drivers, and game settings. Competitive adds deeper platform tuning and validation when that is the right path.