diff --git a/engine/engine.c b/engine/engine.c
index 6cf3cfa..848df2b 100644
--- a/engine/engine.c
+++ b/engine/engine.c
@@ -37,54 +37,52 @@ int main(int argc, char *argv[])
 	void *gamemem = calloc(1, game_conf.memsize);
 	game_init(argc, argv, gamemem, renderer);
 
-	perf_t perf = { .freq = SDL_GetPerformanceFrequency() / 1000000.0 };
-	uint64_t frame = 0, prevt = SDL_GetTicks64();
+	const uint64_t perfhz = SDL_GetPerformanceFrequency();
+	const uint64_t intervalperf = (INTERVAL * perfhz) / 1000;
+	perf_t perf = { .freq = perfhz / 1000000.0 };
+	uint64_t frame = 0;
 	while (1) {
-		const uint64_t t = SDL_GetTicks64();
-		const uint64_t dt = t - prevt;
-		if (dt >= INTERVAL) {
-			perf.start = SDL_GetPerformanceCounter();
+		perf.start = SDL_GetPerformanceCounter();
 
-			// Handle all events currently in queue
-			SDL_Event evt;
-			while (SDL_PollEvent(&evt)) {
-				if (game_evthandle(gamemem, &evt) != GAMESTATUS_OK)
-					goto quit;
-			}
-			perf.evt = SDL_GetPerformanceCounter();
-
-			// Update game state
-			if (game_update(gamemem, INTERVAL) != GAMESTATUS_OK)
+		// Handle all events currently in queue
+		SDL_Event evt;
+		while (SDL_PollEvent(&evt)) {
+			if (game_evthandle(gamemem, &evt) != GAMESTATUS_OK)
 				goto quit;
-			perf.update = SDL_GetPerformanceCounter();
+		}
+		perf.evt = SDL_GetPerformanceCounter();
 
-			// Render frame
-			SDL_RenderClear(renderer);
-			game_render(gamemem, renderer, t);
-			SDL_RenderPresent(renderer);
-			perf.render = SDL_GetPerformanceCounter();
+		// Update game state
+		if (game_update(gamemem, INTERVAL) != GAMESTATUS_OK)
+			goto quit;
+		perf.update = SDL_GetPerformanceCounter();
 
-			// Print performance analysis every 16 frames
-			if ((frame & 15) == 0) {
-				const double evt = (perf.evt - perf.start) / perf.freq;
-				const double update = (perf.update - perf.evt) / perf.freq;
-				const double render
-				    = (perf.render - perf.update) / perf.freq;
-				const double total = (perf.render - perf.start) / perf.freq;
-				const double total_pc = (100 * total / (1000 * INTERVAL));
-				printf(
-					VT100_CLEAR VT100_CURSORTOPLEFT
-				    "evt\t%10.3f μs\nupdate\t%10.3f μs\nrender\t"
-				    "%10.3f μs\ntotal\t%10.3f μs (%05.2f%%)\n",
-				    evt, update, render, total, total_pc);
-			}
+		// Render frame
+		SDL_RenderClear(renderer);
+		game_render(gamemem, renderer, SDL_GetTicks64());
+		SDL_RenderPresent(renderer);
+		perf.render = SDL_GetPerformanceCounter();
 
-			// Increment frame counter and update time
-			++frame;
-			prevt = t;
+		// Print performance analysis every 16 frames
+		if ((frame & 15) == 0) {
+			const double evt = (perf.evt - perf.start) / perf.freq;
+			const double update = (perf.update - perf.evt) / perf.freq;
+			const double render
+				= (perf.render - perf.update) / perf.freq;
+			const double total = (perf.render - perf.start) / perf.freq;
+			const double total_pc = (100 * total / (1000 * INTERVAL));
+			printf(
+				VT100_CLEAR VT100_CURSORTOPLEFT
+				"evt\t%10.3f μs\nupdate\t%10.3f μs\nrender\t"
+				"%10.3f μs\ntotal\t%10.3f μs (%05.2f%%)\n",
+				evt, update, render, total, total_pc);
 		}
 
-		SDL_Delay(INTERVAL / 8);
+		// Increment frame counter and wait until next interval
+		++frame;
+		const uint64_t elapsed = SDL_GetPerformanceCounter() - perf.start;
+		assert(elapsed < intervalperf);
+		SDL_Delay((1000 * (intervalperf - elapsed)) / perfhz);
 	}
 
 quit: