Speed up lru cache splice

package.json

@@ -1,6 +1,6 @@
 {
   "name": "paravel",
-  "version": "0.4.14",
+  "version": "0.4.15",
   "description": "Yet another toolkit for nostr",
   "author": "hodlbod",
   "license": "MIT",

src/util/LRUCache.ts

@@ -14,7 +14,7 @@ export class LRUCache<T, U> {
     if (v !== undefined) {
       this.keys.push(k as T)
 
-      if (this.keys.length > this.maxSize) {
+      if (this.keys.length > this.maxSize * 2) {
         this.keys.splice(-this.maxSize)
       }
     }